frontier (esp. the American frontier); frontier (of a field); forefront (of science, technology)
charges; billing; paying for items in online games
with an interesting history (story); with a shady history; with circumstances that are difficult to explain
edge (of a river, woods, etc.); shoulder (of a road); rim; brim; fabric border (of a tatami mat, etc.); edging
man of the hour; woman of the hour
difficulty; trouble; accident; disaster; fault; defect
critic; reviewer; commentator
spiced sake (served at New Year's)
expression; look; countenance; face
to use excessively; to use too much; to spend too much; to overwork someone
it cannot be that...; it is highly unlikely that...; it is impossible that...
gender; distinction of sex; sex
connection; attachment; changing trains; conjunction
all people; everybody; ten thousand people
server; (cake) server; (water) dispenser; server (tennis, volleyball, etc.)
genius; prodigy; natural gift
creator; inventor; developer
to quiet; to calm down; to compose oneself; to settle down
forever; for good; eternally; as long as one likes; indefinitely; no matter what
mask; veil; disguise; anonymous; unmarked; incognito
business trip; official trip
response; less; -less; loess; wrestling; sexless
defeating an argument; winning an argument; refutation; confutation
laughing while reminiscing
hard struggle; strenuous effort
comments section (on a blog, website, application, etc.); comment field
descent (to earth, esp. of a god); advent; epiphany; arrival (of an important person); appearance
bog; marsh; swamp; quandary; dire situation from which one cannot extricate oneself; imbroglio
on bad terms; at loggerheads
to close (at a certain point); to cut short; to round up (number); to revalue (currency)
softly; mildly; gently; politely
awareness that somebody will be hard to deal with; awareness that one is not good at something; (feeling) not up to doing something
cooked rice; meal; food; one's living; livelihood
eating; bite (in fishing)
eating house; restaurant that serves simple food
preparation; arrangements
to be crowded; to be packed; to be complex