Keyword
open
Info
FrequencyTop 100-200
Type
Kyōiku (3rd grade) 
?
KankenLevel 8
Heisig1750
Readings
ひら
(44%)
かい
(34%)
(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 (603 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)
to open one's mouth (to talk); to (start to) tell
start; commencement; beginning; initiation
development; exploitation
reopening; resumption; restarting
to open one's eyes wide
holding (a conference, exhibition, etc.); opening; hosting (e.g. the Olympics)
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
opening to the public; making available to the public; putting on display; exhibiting; showing (play, movie, etc.); holding (interview, etc.)
opening (a door, window, etc.); leaving open; opening up (e.g. to the public); allowing (public) access
opening fully; full throttle; full power
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.)
to become defiant; to fight back; to turn upon; to take the offensive
opening and shutting; opening and closing
to throw open; to leave open
to have a hole; to be pierced (with a hole)
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)
reclamation (e.g. wasteland); cultivation; development; pioneering; opening up (e.g. 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)
to wrench open; to prize open; to pick (lock)
partly open; in half bloom
to divulge one's true feelings; to open one's heart
to cause a loss; to make a hole (in)
break in the deadlock
at the very beginning of one's speech; the first thing (one) says after opening the mouth
outbreak of war; starting a war
flowers budding; blooming; flowering; showing results; becoming popular; blooming
opening (a letter, parcel, etc.); breaking the seal; unboxing (a product); unsealed mail
raising the curtain; opening (of an event); start of a season
full bloom (esp. of cherry blossom); full blossom
breakup (of a ceremony, wedding, party, meeting, etc.); closure
release (e.g. information); disclosure (legal); show; indication; display
deployment; spreading out; dispersal
opening; gap; dried and opened fish
to open the door
to blossom; to flower; to bloom
plan to overcome an obstacle or break out of a deadlock; breakthrough solution
to force open; to push open
opening a business; opening a practice
to make way for; to make room for; to get out of the way; to pave the way for; to open up opportunity
to gape; to open one's mouth wide
double (two-leaf) door
to open a business
open; frank; liberal; open-minded
beginning of the game; kickoff; face-off
excuse; explanation; justification; defense; defence
uncivilized; uncivilised; undeveloped (land); unexplored (territory, field, etc.); unbloomed (flower)
sense of liberation; feeling of freedom
the rise of the curtain; opening (of play); beginning (e.g. of an era); opening (festival, event, etc.)
rapid development; rapid unfolding
establishment; opening; setting up; inauguration
to open wide (doors, windows, etc.); to fling open
curtain raising; starting (e.g. play, concert)
opening (of a new road, railway, etc.); going into operation (e.g. telephone communication); beginning services; reopening (e.g. a road to traffic); resumption of services
cultivating new land; clearing; reclamation
to open some distance (e.g. with other people)
opening gate
to open up a path; to clear a path; to open up doors; to pave the way
under development; in development
opening and shutting
opening (the doors to an event, etc.); inauguration
(sect) founder; apostle; originator; inventor
to be surprising; to be shocking; to be jaw-dropping
dispersal; evacuation; removal; spreading out (troops); deployment
incision; operation; section
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 meeting
to break up (e.g. a meeting); to call it a night
research and development; R&D
enlightenment; spiritual awakening; opening one's eyes to the truth; gaining eyesight; restoring eyesight; opening the eyes
private; exclusive; secret
opening (of a bottle); broaching; beginning; opening; commencement (e.g. of sales)
to leave space (between)
Development Department
to achieve enlightenment; to attain enlightenment
to spread one's legs; to agree to have sex (for a woman)
to show one's privates
capitulation (of fort)
leaving open; leaving ajar; outspoken; frank
double doors opening from the centre; double-opening from the centre (e.g. doors, casement windows, etc.); method of filleting fish, chicken, etc. with a central cut and peeling back the flesh
space development; space exploration
founding a country; opening of a country (e.g. Japan) to the world; ending (a policy of) national seclusion
to penetrate a body (e.g. with a spear or bullet); to breathe new life into; to provide a potential solution
unveiling a Buddhist image; public exhibition (of a Buddhist image); revealing something that is supposed to remain hidden; opening a gambling house; holding a gambling party
in session; in progress; under way; open
beginning; start; civilization; civilisation; enlightenment
lock-opening; lock-picking
opening to the public (e.g. garden, etc.); read permission: anybody
to start an act (of a play); to have curtains open; to have an (event, period of history, etc.) start
(two-page) spread; two pages opposite each other
pioneer; settler; colonist
technological development
unopened (state); with an unbroken seal
room that is forbidden to enter; locked room; unopened room
private clinician; physician in private practice
to open hostilities; to take up arms (against)
court session; trial
date(s) (e.g. for exhibition)
spreading the legs (wide apart); opening the legs
freedom of information; access to information; disclosure of information (e.g. by the government)
stating (one's views); expressing
opening a school
information discovery; disclosure of information
development project (program, programme, plan)
opening; aperture (e.g. camera); opening one's mouth; beginning to speak; open; broad
(staring) piercingly; (looking) hard
counting ballots; tally (of votes)
beginning of the world; creation
opening hours (of a store, restaurant, etc.)
better fortune
opening (for that day's business; of a library, museum, cinema, etc.); opening (of a new library, museum, cinema, etc.)
abrupt plot change; unexpected story development; story development from out of left field
unguarded; frank; open
undeveloped (area); unexplored (field of study); wild (areas); untapped area
civilization and enlightenment; Japan's Westernization movement during the Meiji era (Westernisation)
to make a breakthrough; to break ground
opening of a park (theme park, botanical garden etc.)
Caesarean section (Cesarean); C-section
development cost
reclaimed land; cleared land; area opened for development
resumption of service (train, bus, etc.)
opening (of uncultivated land)
opening a port (seaport, airport, etc.); starting operations at a port; opening a port to foreign vessels or trade
being open but having virtually no business
to stand upright with arms and/or legs spread; to dodge
savage (barbaric) land; backward region; undeveloped area
new development; new discovery
place where a meeting (conference, etc.) is held; venue
making a surgical incision in the abdomen
to open the door (to the world, women, etc.)
civilization; civilisation; enlightenment
to be frank; to speak one's mind; to open one's heart; to have a heart-to-heart talk (with someone)
debut; opening; first public exhibition
creation of heaven and earth
reopening a shop after renovation; post-refurbishment reopening
start of broadcast; commencement of transmission; sign-on
unpublished; not made public; unlisted (e.g. stock); unreleased; undisclosed
undeveloped (countries); backward; unentered
(hinged) door
founding a temple (on a hill-top)
opening game; (season) opener
opening of a pool (e.g. for the summer season)
barbarian; savage; savage (primitive) people (race)
civilization; civilisation; enlightenment
spreading one's legs open wide with knees bent, creating the shape of the letter M (pornographic pose)
simultaneous development; spreading at the same time (e.g. two phenomena)
sense of space; spaciousness
open-necked shirt
to wrench open; to prize open; to pick (lock)
nuclear development
cultivated land
host country (e.g. for a conference)
newly-opened land; recently-settled region; frontier; new residential area; new development
opening of the beachgoing season
development of potential ability; capacity development
expanding into a chain (e.g. store, hotel); development of chain stores
open criminal investigation
opening inward (e.g. door, window)
opening in front (clothing)
(since) the beginning of the universe; (since) the dawn of time
now available (e.g. for sale); now showing (e.g. film, exhibition)
half-open; partly open; semicivilized; semicivilised
unguarded; frank; open
release date; publication date; opening day; open day
developer (of software, video games, etc.)
overseas deployment (e.g. military forces); overseas expansion (e.g. business operations)
to open (up) a Pandora's box
opening (of a broadcasting station, post office, bureau, etc.); establishment
since the beginning of the world; since the dawn of history
to reopen (e.g. a file, window); to open again
opening a new hospital, institution, temple, etc.; opening a hospital, institution, temple, etc. (for the day); opening of a Diet session (pre-WWII)
unstopping; uncorking; uncapping; connecting (e.g. gas supply)
starting a business; opening a store (for the day)
early-Meiji administrative unit for Hokkaido (1869-1882)
festival marking the start of boating season
(staring) piercingly; (looking) hard
to feel relieved; to forget about one's troubles; to settle into peace of mind
to forcefully open up a hole (in a wall, etc.); to speak frankly, holding nothing back; to throw out (everything inside)
to open wide; to reveal hidden contents
opening a door
results of the vote count
leaving open; leaving ajar; outspoken; frank
opening of a ceremony
start of a course; start of lectures; opening of a new course; offering a course (for the first time)
laparotomy (abdominal surgery)
independently developed; proprietary
casting and counting votes
pierced; drilled; perforated; hollow
single door (as opposed to a double door)
resource development; resource exploitation (usu. natural resources)
excavation; cutting; digging
opening; beginning; commencement
anniversary of the founding of the school
code name (of a product under development)
opening (of a new office, facility, etc.)
formal opening (e.g. of a railway, road, etc.); opening ceremony; inauguration ceremony
opening of a parachute
percentage of votes counted so far
foundation of a temple; laying a foundation (stone); open base
the rise of the curtain; opening (of play); beginning (e.g. of an era); opening (festival, event, etc.)
initial opening (esp. of a temple)
unbuttoning a collar; opening up (one's heart); open-necked shirt
stock offering (to the public)
interior elevation; expansion plan (of a ship); net (of a polyhedron); development
excuse; explanation; justification; defense; defence
opening of a banquet; opening of a wedding reception
to begin a new chapter (in)
excavation; cutting; digging
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
to have time free; to have time to spare
open heart surgery; cardiotomy; direct intracardiac surgery
war party; warmonger
opening up of a market; market liberalization
public debate; open discussion
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
to have luck turn one's way; to have one's fortune change for the better
opening a book; opening (part) of a book
national land development (e.g. building infrastructure, roads, etc.)
ceremony to consecrate a newly made Buddhist statue or image by inserting the eyes (thereby investing it with soul)
same-day counting of ballots
Official Development Assistance; ODA
open port; treaty port
to forcefully open up a hole (in a wall, etc.); to speak frankly, holding nothing back; to throw out (everything inside)
to get a body piercing (earlobe, tongue, etc.)
Japan's first circulated coinage (minted in 708 CE)
open access (in a library); open shelves
slicing a fish down its back
unlisted stocks; unlisted shares; unquoted shares
anthesis; flowering season
to vacate; to surrender (e.g. a castle); to give up (e.g. a position); to hand over (e.g. power)
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)
space development project (program, programme)
quick (flash) report of votes counted
environmentally damaging (indiscriminate) development
evacuation of school children (from major cities to more rural areas, esp. during late World War II)
breakup (of a ceremony, wedding, party, meeting, etc.); closure
founder; establisher
Reform and Opening-up (Chinese economic policy)
uncivilized country
start of the mountain-climbing season
surprising; shocking; jaw-dropping
to blossom; to flower; to bloom
opening and shutting
to reopen (e.g. a file, window); to open again
to provide impetus
warp (on the page or cover of a book, making it splay open)
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)
development block; development base
to force open; to push open
cleavage (in gems)
excuse; explanation; justification; vindication
open sesame!
governmental office opening (usually special case)
opening ceremony (of an event, show, etc.)
school opening ceremony
opening or unsealing of bids
Caesarean section (Cesarean); C-section
publishing (esp. using woodblock printing)
opening a door
general practitioner in private practice; primary care physician (US); GP
episiotomy; perineotomy
entrusted development; original equipment manufacturer; OEM
temple hall commemorating its founding or its founder
beginnings; origins
divergence; aperture
cutting the New Year's rice cake (January 11th); traditional breaking of a sake cask at weddings, receptions, etc.
leaving open; leaving ajar; outspoken; frank
developing country; emerging nation
establishment of a university
extraction of square root
start day for military operation; departure day; D-Day
starting price; ask price; ask; suggested opening price
bringing out the pillows and futon (in Zen Buddhism); sleeping
features (e.g. of a product); development chronology
creating a new village or town; opening a village (e.g. for Olympic athletes)
clearing (land); excavating
formal opening of a new theater (theatre)
international expansion
open; openminded
lock pick; lock-opening tools
wisdom; enlightenment
breakthrough in the situation; break in the deadlocked situation
human resources development; personnel development; career development; HRD
developmental dictatorship (authoritarian form of government that pursues rapid economic development at the expense of democratic freedoms)
development of electrical power resources
to do something in public; to open
independent development
Japanese colonists of Manchuria and Inner Mongolia
to wrench open
opening and shutting
casting away one's vices or worldly desires and achieving enlightenment
to open; to vacate
opening a can
community or regional development
to justify; to explain; to vindicate
opening chant of a sutra
newly commenced ...; just started ...
infrastructure development
opening a gambling house; holding a gambling party
wingspan (of a bird); wingspread
(cherry) blossom front; flower front
local warriors, or provincial or district officials, who developed paddy field lands
(hole) punch; stiletto
extraction of cubic root
numerical aperture (in photography)
to wrench open
unbuttoning a collar; opening up (one's heart); open-necked shirt
making materials in a library available in open stacks
horse mackerel, cut open and dried
to find a clue; to make a beginning
unsealed mail
day of blooming
extraction of roots; evolution
Kaesong (North Korea)
primitive and barbarous; uncivilized and barbaric
Freedom of Information Law; Freedom of Information Act (various countries); FOIA
grand opening
underdeveloped country; half-civilized country; half-civilised country
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
dehiscence; cleavage; fission
bathing (in a Zen Temple)
first opening of warehouse after New Year
newly listed stocks; new stock offering
publishing (esp. using woodblock printing)
virgin soil; uncultivated land
open sesame!
opening the winter hearth
undeveloped country; third world country
beginning of a screening (at a movie theatre); starting a screening
drawbridge; bascule bridge
ballot-counting place
evacuating to the homes of one's relatives in the countryside in wartime
long "o" vowel arising from combination of the "a" and "u" sounds
excuse; explanation; justification; vindication
opening of a hot spring or bathhouse
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
development process
United Nations Development Program; UNDP
code name (of a product under development)
wingspan (of a bird); wingspread
to find a clue; to make a beginning
development bank
involvement of peer groups (Quality Assurance term); application to similar products; grassroots (organization, development, movement)
keratotomy; corneal incision
open ditch; open channel; open conduit; open culvert
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
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
publicly-traded stock; stock listed on the stock exchange
first lighting of the hearth in a Zen temple (first day of the 10th or 11th month)
knock, and it shall be opened unto you; God answers prayers
start of deployment
nuclear development program; nuclear program
starting a business; opening a store (for the day)
the rise of the curtain; opening (of play); beginning (e.g. of an era); opening (festival, event, etc.)
to wrench open
cleavage (in gems)
to justify; to explain; to vindicate
human resources development; personnel development; career development; HRD
human resources development; personnel development; career development; HRD
extraction of roots; evolution
unguarded; frank; open
knock, and it shall be opened unto you; God answers prayers
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
(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
European Bank for Reconstruction and Development; EBRD
Buddhist missionary, esp. in Jodo, Pure Land, etc. sects; Buddhist minister (in the West)
opening ceremony for the new ring in a stable
garden-town development; rural city development; urban sprawl
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
fraudulent business of selling goods by claiming they will bring supernatural benefits
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)
1992 Property Disclosure Act; law requiring members of parliament to disclose their assets
open channel (liquid flow)
beef (or pork) and egg on rice
beef (or pork) and egg on rice
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)
switching station; switchyard
agile (software) development
Kaiyuan City (Yunnan)
Kaiyuan City (Yunnan)
moonflower (Ipomoea alba)
Examples (200 in total)
Are you still open?
It's still open.
It was that sound that brought her eyes open.