four (long cylindrical things)
university or college offering four-year programs; the big four ...; the four major ...
① 四回。② 温度、角度を表す単位「度」四つ分の大きさ。③ 《音響学》基準音の3/4倍の波長（4/3倍の周波数）を持つ音。完全四度。④ 《音楽》サブドミナント。【純正調で】音響学に同じ。ただし、下の音程（音響学の逆数）も含む。【平均律で】１オクターブを12等分したときの５半音。これらの定義が基準で、これを減じたり増じたりしたものを含む。⑤ 《仏教 しど》 「四度加行」の略。
four times (as much); quadruple; fourfold
four generations; fourth generation immigrant; yonsei; the fourth (e.g. George IV)
four characters; four letters
fourth year of elementary school; fourth year elementary school student
four-panel comic strip; yonkoma
semifinalists; final four (in a tournament)
fourth year (college) student; senior
coach and four; four horse coach
quadrennial; recurring every four years
the four northern islands (held by Russia); south Kuril Islands; northern territories
land-tax rate during the Edo period (the government took 60 percent of the year's rice crop and the farmers kept 40 percent)
720ml bottle (of alcohol)
humorism (ancient system of medicine); humoralism
four-wheeled light vehicle
four-letter word (esp. in English)
four-color theorem (colour) (theorem stating that any map can be colored such that no two adjacent segments have the same color, if only four colors are used)
the four top party executives (of the LDP)
ideal husband who is not overbearing, is not dependent on his wife, has a stable job and does not spend a lot of money
registration black (in printing)