必中

ひっちゅう

hitting the target

一発

いっぱつ

blow, punch

中一

ちゅういち

first year (pupil) in junior middle school, second year (pupil) in lower secondary school

半数必中界

はんすうひっちゅうかい

circular error probability (measure of missile accuracy), circular error probable, CEP

発売中

はつばいちゅう

now on sale

発展中

はってんちゅう

under development, in progress

開発中

かいはつちゅう

under development

一発屋

いっぱつや いちはつや

all-or-nothing gambler, power hitter (baseball), slugger, one hit wonder (e.g. in music)

一発ネタ

いっぱつネタ

short joke, quick one-liner

一発ギャグ

いっぱつぎゃぐ

short joke, quick one-liner, one-shot joke

一発芸

いっぱつげい

one-liner, funny joke, gag, quick trick

必

ひつ

definiteness, certainty

一夜中

いちやじゅう ひとやじゅう いちやなか

all-night through

一中節

いっちゅうぶし

type of Joruri (dramatic recitation accompanied by a shamisen)

一日中

いちにちじゅう いちにちぢゅう

all day long, all the day, throughout the day

一晩中

ひとばんじゅう

all night long, all through the night

一年中

いちねんじゅう いちねんぢゅう いちねんちゅう

all year round

百発百中

ひゃっぱつひゃくちゅう

always hitting the bull's-eye, infallible

必要は発明の母

ひつようははつめいのはは

necessity is the mother of invention