Keyword
open
Info
FrequencyTop 100-200
Type
Kyōiku (3rd grade) 
?
KankenLevel 8
Heisig1750
Readings
ひら
(44%)
かい
(34%)
あ
(20%)
Composed of
gate
oriental lantern
Mnemonic

When you peek through the gate you can see a beautiful oriental lantern inside. The lantern is a little bit too bright so you can't see anything else; for that you'd need to open the gate and go inside.

Used in vocabulary (719 in total)
to open; to undo; to bloom; to unfold; to open (for business, e.g. in the morning); to be wide (gap, etc.); to widen
to open (a door, etc.); to unwrap (e.g. parcel, package); to open (for business, etc.); to empty; to remove; to move out; to clear out
development; evolution; expansion; spreading out; expansion (of an algebraic expression); development (of a three-dimensional shape); extraction (of compressed data)
start; commencement; beginning; initiation
to open one's mouth (to talk); to (start to) tell
development; cultivation; application; exploitation (of resources)
reopening; resumption; restarting
to open out (of a view, scenery, etc.); to spread out; to improve (of luck, prospects, etc.); to get better; to develop (of a town, civilization, etc.); to become civilized; to be sensible
to open (one's eyes) wide
holding (a conference, exhibition, etc.); opening; hosting (e.g. the Olympics)
opening to the public; making available to the public; exhibiting; unveiling; release (of a film, information, etc.); disclosure
opening (a door, window, etc.); leaving open; opening up (e.g. to the public); allowing (public) access
to open (e.g. doors); to open (e.g. business, etc.); to be empty; to be vacant; to be available; to be open (e.g. neckline, etc.); to have been opened (of one's eyes, mouth, etc.)
opening fully; full throttle; full power
opening and shutting; opening and closing
raising the curtain; opening (of an event); start; beginning
to become defiant; to fight back; to turn upon; to take the offensive
to have a hole; to be pierced (with a hole)
reclamation (e.g. of wasteland); cultivation; development; pioneering; opening up (e.g. of a new market); breaking new ground
to cut open; to clear (land); to cut (a path, road, etc.); to carve out (a new career, future, etc.); to open up (a new field)
opening a new shop; opening a shop (for the day)
break in the deadlock
flowering; blooming; blossoming; flowering (of a civilization, talent, etc.); blossoming; blooming
to open wide (doors or windows); to throw open; to fling open; to leave open; to keep open
to open the lid; to lift a lid; to open the lid (on); to make public; to start (something); to look at the results (consequences, outcome, effect)
to wrench open; to break open; to pry open; to prise open; to force open
partly open; in half bloom
release (of information, documents, etc.); disclosure; display; discovery
to cause a loss; to make a hole (in)
to open up to someone else; to divulge one's true feelings; to be openhearted
establishment; opening; setting up; inauguration
opening a business; opening a practice
outbreak of war; starting a war
at the very beginning of one's speech; immediately upon opening one's mouth (to speak); before anything else; first of all
full bloom (esp. of cherry blossom); full blossom
opening (a letter, parcel, etc.); breaking the seal; unboxing (a product); unsealed mail
opening; gap; dried and opened fish; extension
open; beginning
breakup (of a ceremony, wedding, party, meeting, etc.); closure
deployment; spreading out; dispersal
plan to overcome an obstacle or break out of a deadlock; breakthrough solution
to open the door
to blossom; to flower; to bloom; to flower (of a civilization, talent, etc.); to flourish; to become widespread
opening (of a new road, railway, etc.); going into operation (e.g. telephone communication); beginning services; reopening (e.g. of a road to traffic); resumption of services
start of a match; beginning of a game; kickoff
to force open; to push open
private; non-public; secret; closed-door; closed
research and development; R&D
resumption of service (train, bus, etc.)
to gape; to open one's mouth wide
to make way for; to make room for; to get out of the way; to pave the way for; to open up opportunity
to open a business
open (attitude, etc.); openhearted; frank; open (space); spacious
rise of the curtain; opening of a play; beginning (e.g. of an era); start; opening (of a tournament, festival, etc.)
double (two-leaf) door
opening of a gate
under development; in development
opening of a meeting
uncivilized; uncivilised; undeveloped (land); unexplored (territory, field, etc.); unbloomed (flower)
excuse; explanation; justification; defense; defence
sense of liberation; feeling of freedom
counting ballots; tally (of votes)
rapid development; rapid unfolding
opening to the public (e.g. garden, etc.); read permission: anybody
to open wide (doors or windows); to throw open; to fling open; to leave open; to keep open
to open up a path; to clear a path; to open up doors; to pave the way
curtain raising; starting (e.g. play, concert)
nuclear development
technological development
opening game; (season) opener
space development; space exploration
opening (the doors of a venue); inauguration (of a new building, facility, etc.)
freedom of information; access to information; disclosure of information (e.g. by the government); releasing information (of an organization or an individual); making public
cultivating new land; clearing; reclamation
opening and closing; opening and shutting
to open some distance (e.g. with other people)
public execution; public embarrassment
to open a pathway (to); to find a way (to); to open the door (to); to pave the way (for)
evacuation (to the country); spreading out (troops); deployment; dispersal
to open the lid; to lift a lid; to open the lid (on); to make public; to start (something); to look at the results (consequences, outcome, effect)
(sect) founder; apostle; originator; inventor
place where a meeting (conference, etc.) is held; venue
dumbfounded; speechless; flabbergasted; openmouthed (with surprise)
incision; operation; section
enlightenment; spiritual awakening; reaching one's peak (as a performer, etc.); reaching the highest echelons; gaining eyesight; restoring eyesight
to break up (e.g. a meeting); to call it a night
information discovery; disclosure of information
to leave space (between)
host country (e.g. for a conference)
surrender of a castle; surrender of a fortress; capitulation of a stronghold
to achieve enlightenment; to attain enlightenment
opening (for that day's business; of a library, museum, cinema, etc.); opening (of a new library, museum, cinema, etc.)
opening (of a bottle); broaching; beginning; opening; commencement (e.g. of sales)
development department
opening a school
in session; in progress; under way; open
to open the lid; to lift a lid; to open the lid (on); to make public; to start (something); to look at the results (consequences, outcome, effect)
opening of a park (theme park, botanical garden etc.)
leaving open; leaving ajar; outspoken; frank
to spread one's legs; to agree to have sex (for a woman)
to show one's privates
public exhibition (of a Buddhist image); displaying (a Buddhist image); revealing (something that is supposed to remain hidden); opening (a gambling house); holding (a gambling party)
to penetrate a body (e.g. with a spear or bullet); to breathe new life into; to provide a potential solution
double doors (opening from the centre); double-opening from the centre (of doors, casement windows, etc.); filleting fish, chicken, etc. with a central cut and peeling back the flesh
founding a country; opening of a country (e.g. Japan) to the world; ending (a policy of) national seclusion
development project (program, programme, plan)
beginning; start; civilization; civilisation; enlightenment
lock-opening; lock-picking
unopened; with an unbroken seal
pioneer; settler; colonist
the curtain opens (for the start of a play, act, etc.); the curtain rises; to start (of a play); to start (of an event, campaign, etc.); to begin
(two-page) spread; two pages opposite each other
results of the vote count
private clinician; physician in private practice
date (of an event, meeting, etc.)
casting and counting votes
opening a port (seaport, airport, etc.); starting operations at a port; opening a port to foreign vessels or trade
court session; trial
room that is forbidden to enter; locked room; unopened room
overseas deployment (e.g. military forces); overseas expansion (e.g. business operations)
development cost
to open hostilities; to take up arms (against)
opening hours (of a store, restaurant, etc.)
spreading the legs (wide apart); opening the legs
to be frank; to speak one's mind; to open one's heart; to have a heart-to-heart talk (with someone)
stating (one's views); expressing
(staring) piercingly; (looking) hard
same-day counting of ballots
better fortune
Caesarean section; Cesarean section; C-section
opening (of a new office, facility, etc.)
abrupt plot change; unexpected story development; story development from out of left field
debut; opening; first public exhibition
to make a breakthrough; to break ground
opening; aperture (e.g. camera); opening one's mouth; beginning to speak; open; broad
wide-open; frank; open; candid
dumbfounded; speechless; flabbergasted; openmouthed (with surprise)
undeveloped (area); unexplored (field of study); wild (areas); untapped area
resource development; resource exploitation (usu. natural resources)
drilling; hole punching
reclaimed land; cleared land; area opened for development
Organisation for Economic Cooperation and Development; OECD
opening up of a market; market liberalization
beginning of the world; creation
civilization and enlightenment; Japan's Westernization movement during the Meiji era (Westernisation)
opening (of uncultivated land)
to open the door (to the world, women, etc.)
new development; new discovery
start of broadcast; commencement of transmission; sign-on
being open but having virtually no business
to stand upright with arms and/or legs spread; to dodge
unpublished; not made public; unlisted (e.g. stock); unreleased; undisclosed
Official Development Assistance; ODA
opening of the beachgoing season
savage (barbaric) land; backward region; undeveloped area
Japan Agency for Marine-Earth Science and Technology; JAMSTEC
percentage of votes counted so far
to become defiant; to fight back; to turn upon; to take the offensive
making an incision in the abdomen; performing a laparotomy
creation of heaven and earth
civilization; civilisation; enlightenment
reopening a shop after renovation; post-refurbishment reopening
start of the mountain-climbing season
founding a temple (on a hill-top)
development of potential ability; capacity development
opening of a pool (e.g. for the summer season)
undeveloped (countries); backward; unentered
(hinged) door
simultaneous development; spreading at the same time (e.g. two phenomena)
spreading one's legs open wide with knees bent, creating the shape of the letter M (pornographic pose)
to open wide (doors or windows); to throw open; to fling open; to leave open; to keep open
ballot-counting place
sense of space; spaciousness
barbarian; savage; savage (primitive) people (race)
civilization; civilisation; enlightenment
quick (flash) report of votes counted
start of a course; start of lectures; opening of a new course; offering a course (for the first time)
expanding into a chain (e.g. store, hotel); development of chain stores
open-necked shirt
Reform and Opening-up (Chinese economic policy)
now available (e.g. for sale); now showing (e.g. film, exhibition)
to wrench open; to break open; to pry open; to prise open; to force open
since the beginning of the world; since the dawn of history
opening (of a broadcasting station, post office, bureau, etc.); establishment
laparotomy (abdominal surgery)
opening a new hospital, institution, temple, etc.; opening a hospital, institution, temple, etc. (for the day); opening of (a session of) the Imperial Diet
unlisted stocks; unlisted shares; unquoted shares
open criminal investigation
horse mackerel, cut open and dried
development block; development base
infrastructure development
cultivated land
newly-opened land; recently-settled region; frontier; new residential area; new development
public debate; open discussion
developer (of software, video games, etc.)
wide-open; frank; open; candid
development of electrical power resources
(since) the beginning of the universe; (since) the dawn of time
establishment of a university
to open (up) a Pandora's box
front-opening
opening inward (of a door or window)
United Nations Development Program; UNDP
unstopping; uncorking; uncapping; connecting (e.g. gas supply)
release date; publication date; opening day; open day
formal opening (e.g. of a railway, road, etc.); opening ceremony; inauguration ceremony
independently developed; proprietary
to reopen (e.g. a file, window); to open again
half-open; partly open; semicivilized; semicivilised
nuclear development program; nuclear program
to forcefully open up (a hole; in a wall, etc.); to speak frankly; to open one's heart; to throw out (everything inside); to empty (e.g. a box)
leaving open; leaving ajar; outspoken; frank
(staring) piercingly; (looking) hard
pierced; drilled; perforated; hollow
festival marking the start of boating season
to feel relieved; to forget about one's troubles; to settle into peace of mind
early-Meiji administrative unit for Hokkaido (1869-1882)
to open wide; to reveal hidden contents
opening of a ceremony
independent development
cutting the New Year's rice cake (January 11th); traditional breaking of a sake cask at weddings, receptions, etc.
non-disclosure (of information)
opening a door
starting a business; opening a store (for the day)
evacuation of school children (from major cities to more rural areas, esp. during late World War II)
Freedom of Information Act; FOIA
establishment of the shogunate; founding a shogunate
single door (as opposed to a double door)
opening a government office (for the day); opening a new government office
stock offering (to the public)
school opening ceremony
code name (of a product under development)
opening; beginning; commencement
anniversary of the founding of the school
founder; establisher
excavation; cutting; digging
interior elevation; expansion plan (of a ship); net (of a polyhedron); development
opening of a banquet; opening of a wedding reception
rise of the curtain; opening of a play; beginning (e.g. of an era); start; opening (of a tournament, festival, etc.)
to begin a new chapter (in)
international expansion
opening of a parachute
excavation; cutting; digging
founding (of a temple or sect); founder; laying the foundation (for something); base (topology); basis
initial opening (esp. of a temple)
unbuttoning a collar; opening up (one's heart); open-necked shirt
to open (e.g. one's robe); to bare (e.g. one's chest); to open up (of clothing); to be exposed; (arch.) to open wide (one's legs, eyes, mouth, etc.); (arch.) to stretch
creating a new village or town; opening a village (e.g. for Olympic athletes)
excuse; explanation; justification; defense; defence
to have luck turn one's way; to have one's fortune change for the better
to have time free; to have time to spare
environmentally damaging (indiscriminate) development
open (as of a pack)
to be separated (of clothing); to be exposed; to be wide open; to stand with one's limbs apart; to block the way
war party; warmonger
space development project (program, programme)
ceremony to consecrate a newly made Buddhist statue or image by inserting the eyes (thereby investing it with soul)
INPEX (Japanese petroleum company)
slicing a fish down its back
opening a book; opening (part) of a book
to get a body piercing (earlobe, tongue, etc.)
opening (e.g. library, museum, etc); being open; making a room accessible to people; (organization) being available to take on work
national land development (e.g. building infrastructure, roads, etc.)
to forcefully open up (a hole; in a wall, etc.); to speak frankly; to open one's heart; to throw out (everything inside); to empty (e.g. a box)
open port; treaty port
human resources development; personnel development; career development; HRD
opening and shutting; opening and closing
to open up a lead (over one's opponent)
to vacate; to surrender (e.g. a castle); to give up (e.g. a position); to hand over (e.g. power)
wadō kaichin; Japan's first circulated coinage (minted in 708 CE)
opening or unsealing of bids
horizontal deployment (of techniques, etc.); application to other fields
open access (in a library); open shelves
anthesis; flowering season
surprising; shocking; jaw-dropping
to blossom; to flower; to bloom; to flower (of a civilization, talent, etc.); to flourish; to become widespread
to reopen (e.g. a file, window); to open again
winning hand formed by drawing a replacement tile after declaring a kong
Kaiseijo (school of foreign studies set up by the shogunate during the Edo period)
regional development; community development
slicing a fish along its belly
breakup (of a ceremony, wedding, party, meeting, etc.); closure
to provide impetus
Japanese colonists of Manchuria and Inner Mongolia
extraction of square root
uncivilized country
cleavage (in gems)
leaving open; leaving ajar; outspoken; frank
open sesame!
to cut open; to clear (land); to cut (a path, road, etc.); to carve out (a new career, future, etc.); to open up (a new field)
to force open; to push open
beginnings; origins
warp (on the page or cover of a book, making it splay open)
breakthrough in the situation; break in the deadlocked situation
1992 Property Disclosure Act; law requiring members of parliament to disclose their assets
United Nations Conference on Trade and Development (UNCTAD)
opening ceremony (of an event, show, etc.)
excuse; explanation; justification; vindication
features (e.g. of a product); development chronology
European Bank for Reconstruction and Development; EBRD
publishing (esp. using woodblock printing)
episiotomy; perineotomy
Caesarean section; Cesarean section; C-section
general practitioner in private practice; primary care physician (US); GP
entrusted development; original equipment manufacturer; OEM
US Agency for International Development; USAID
newly listed stocks; new stock offering
(bond) cleavage; splitting open
divergence; aperture
formal opening of a new theater (theatre)
temple hall commemorating its founding or its founder
clearing (land); excavating
open; openminded
development machine; experimental machine
starting price; ask price; ask; suggested opening price
to wrench open
to do something in public; to open
development bank
bringing out the pillows and futon (in Zen Buddhism); sleeping
start day for military operation; departure day; D-Day
day of blooming
first opening of warehouse after New Year
opening and shutting; opening and closing
wisdom; enlightenment
lock pick; lock-opening tools
start of deployment
bringing luck and good fortune
Okinawa Development Agency (1972-2001)
wingspan (of a bird); wingspread
opening (a gambling house); holding (a gambling party)
developmental dictatorship (authoritarian form of government that pursues rapid economic development at the expense of democratic freedoms)
to wrench open
casting away one's vices or worldly desires and achieving enlightenment
opening chant of a sutra
to justify; to explain; to vindicate
newly commenced ...; just started ...
making materials in a library available in open stacks
to open; to vacate
(cherry) blossom front; flower front
human resources development; personnel development; career development; HRD
switching station; switchyard
opening a can
horse mackerel, cut open and dried
uncultivated; wild
extraction of cubic root
(hole) punch; stiletto
local warriors, or provincial or district officials, who developed paddy field lands
numerical aperture (in photography)
even the demons of hell rest during Obon and the New Year
opening (a letter); unsealing
making no progress; getting nowhere; remaining unsettled
unbuttoning a collar; opening up (one's heart); open-necked shirt
fraudulent business of selling goods by claiming they will bring supernatural benefits
to find a clue; to make a beginning
opening the winter hearth
bascule bridge; drawbridge
Kaesong (North Korea)
dehiscence; cleavage; fission
open sesame!
to find a clue; to make a beginning
divergence (of the eyes)
development process
extraction of roots; evolution
grand opening
(crime of) opening sealed correspondence
beginning of a screening (at a movie theatre); starting a screening
bargaining; negotiation; turning one's body to the left or right and standing (when leaving the presence of nobility, etc.); sailing close-hauled; sailing on a close reach
bargaining; negotiation; turning one's body to the left or right and standing (when leaving the presence of nobility, etc.); sailing close-hauled; sailing on a close reach
opening of a hot spring or bathhouse
primitive and barbarous; uncivilized and barbaric
bathing (in a Zen Temple)
unsealed mail
involvement of peer groups; application to similar products; grassroots (organization, development, movement)
underdeveloped country; developing country
virgin soil; uncultivated land
underdeveloped country; half-civilized country; half-civilised country
publishing (esp. using woodblock printing)
Japan Petroleum Development Corporation
evacuating to the homes of one's relatives in the countryside in wartime
first day of cherry blossoms reaching full bloom; first day in which at least 80% of the somei yoshino cherry blossom has opened (in a specific region or place)
start codon; initiation codon
to stand in the way (esp. with legs spread out); to block the way; to stand in the way (e.g. of progress); to obstruct
organization development; organizational development; OD
keratotomy; corneal incision
code name (of a product under development)
wingspan (of a bird); wingspread
to vomit; to throw up; to spew
excuse; explanation; justification; vindication
knock, and it shall be opened unto you; God answers prayers
opening ceremony for the new ring in a stable
open ditch; open channel; open conduit; open culvert
long "o" vowel arising from combination of the "a" and "u" sounds
Catan (board game); The Settlers of Catan; Settlers
first lighting of the hearth in a Zen temple (first day of the 10th or 11th month)
publicly traded stock; stock listed on the stock exchange
to become defiant; to fight back; to turn upon; to take the offensive
excavation; cutting; digging
starting a business; opening a store (for the day)
rise of the curtain; opening of a play; beginning (e.g. of an era); start; opening (of a tournament, festival, etc.)
human resources development; personnel development; career development; HRD
to wrench open
cleavage (in gems)
to justify; to explain; to vindicate
extraction of roots; evolution
unguarded; frank; open
knock, and it shall be opened unto you; God answers prayers
software development kit; SDK
unopened; forbidden
start of text; STX
start of heading; start of header; SOH
developing a way or means
to explain; to justify
non-disclosure agreement
resumption; continuing
mechanical device for opening and closing (shutters, gates, etc.); (railway) crossing gate; barrier
to be licensed to practice (e.g. law); to be allowed to open a business
split and dried saurel
opening of mine
develop-and-import formula
Buddhist missionary, esp. in Jodo, Pure Land, etc. sects; Buddhist minister (in the West)
surprising; shocking; jaw-dropping
very beginning of a book
Comprehensive National Development Plan (1962-)
eyelid speculum; lid retractor
(of Chinese) pronunciation of kanji without a medial between the initial consonant and center vowel; (of Japanese) the long "o" vowel arising from combination of the "a" and "u" sounds
dehiscent fruit
opening hours of a gallery
opening a door for a moment (esp. on the train, when someone's foot is stuck, etc.)
opening a door for a moment (esp. on the train, when someone's foot is stuck, etc.)
prefatory sutra; opening a sutra; beginning to read a sutra
application developer; applications developer; applications programmer
cross development
beginning tag; starting tag; opening tag
starting variable; SV
system follow-up; post-implementation review; post-development review
device-dependent version of public text
functioning cuff buttons on a jacket (i.e. those that can be buttoned and unbuttoned); surgeon's cuffs
at close reach (sailing); at close haul
at close reach (sailing); at close haul
large-scale housing and lifestyle development project
groove (in welding)
punch-style can opener (punches a round or V-shaped hole in a can of liquid)
to be opened; to be held (of a meeting, party, etc.); to be open (i.e. unrestricted); to be opened up
open channel (liquid flow)
bowl of rice topped with beef (or pork) and egg
bowl of rice topped with beef (or pork) and egg
Liberation Day (in Korea, Italy, etc.)
opening day flower gift; bouquet of flowers given to a new store (restaurant, etc.) on its opening day
wingspread (of an insect)
folding trestle legs; hiraki-ashi; lateral foot displacement (kendo)
agile (software) development
settlement of the American frontier; settlement of the Old West
public company; publicly listed company; publicly traded company; (Japanese) stock company that does not impose restrictions on share transfers
f-number; focal ratio; f-ratio; f-stop
opening outward (of a door or window)
just opened
just opened
polytechnic college (with two-year and four-year courses)
swing bridge; swivel bridge
(crime of) opening sealed correspondence
dilatation stage (of labour)
opening up a kindergarten playground to young children and parents from the local area
capitulation without resistance; surrendering without fighting
open bite; apertognathia
opening act; introductory part
pioneer settlement; frontier village
opening; pull tab
Vocational Abilities Development Promotion Act
Japan Marine Fishery Resources Research Center; JAMARC
Development Education Association & Resource Center; DEAR
National Economic and Development Authority
National Economic and Social Development Board
International Institute for Management Development; IMD
Water Resources Development Public Corporation
Electric Power Development
Urban Developers' Association of Japan
Agriculture Land Development Machinery Public Corporation
Hokkaido-Tōhoku Development Finance Public Corporation
Kaiyuan City (Yunnan)
Kaiyuan City (Yunnan)
moonflower (Ipomoea alba)
open skirt; opening on one or both sides of edge territory, allowing the opponent to jump in
Examples (200 in total)
Are you still open?
It's still open.
It was that sound that brought her eyes open.