大一番

おおいちばん だいいちばん

decisive game

一番星

いちばんぼし いちばんほし

the first star to appear in the evening

春一番

はるいちばん

first storm of spring, strong winds during the change from winter to spring

一番鶏

いちばんどり

first cockcrowing

一番茶

いちばんちゃ

first-grade tea (first picking)

一番手

いちばんて

first player, first worker

朝一番

あさいちばん

first thing in the morning

一番目

いちばんめ

the first

一番上

いちばんうえ

topmost

一番線

いちばんせん

track no. 1

一番底

いちばんそこ

first bottom

一番太鼓

いちばんだいこ

beating of a drum as a signal to announce the opening (beginning) of an event (theatrical performance, festival, etc.)

一番風呂

いちばんぶろ

freshly drawn bath, (taking) a bath before anyone else

開口一番

かいこういちばん

at the very beginning of one's speech, the first thing (one) says after opening the mouth

一番乗り

いちばんのり

leader of a charge, first to arrive

一番多い

いちばんおおい

most numerous

緊褌一番

きんこんいちばん

gird oneself up

奮起一番

ふんきいちばん

bracing oneself up to action, being inspired by something, getting down to work, putting heart and soul into it, tackling (a job) with gusto

一番勝負

いちばんしょうぶ

contest decided by a single round (bout), contest decided by a single roll of dice, one-shot game (contest), make-or-break game