ちょっと一杯[chottoippai] let's have a quick drink
ばつ一[batsuichi] being once divorced
一向[hitaburu] nothing but
サラダ一皿[saradahitosara] plate of salad

安全第一[anzendaiichi] safety first
一か八か[ichikabachika] sink or swim
一っ走り[hitoppashiri] spin (as in 'take a car for a spin')
一つ一つ[hitotsuhitotsu] one-by-one

助番[sukeban] leader of a female gang
ブロック番号[burokkubangou] block number
暗唱番号[anshoubangou] personal identification number
一貫番号[ikkanbangou] serial number
一番[ichiban] best

一番[hitotsugai] pair
一番鶏[ichibandori] first cockcrowing
一番手[ichibante] first player
一番乗り[ichibannori] leader of a charge
一番線[ichibansen] track no. 1

緊々[hishihishi] acutely
握り緊める[nigirishimeru] to grasp tightly
緊急[kinkyuu] urgent
緊急着陸[kinkyuuchakuriku] emergency landing
緊縮[kinshuku] shrinkage

緊張[kinchou] tension
緊迫[kinpaku] tension
緊縛[kinbaku] bind tightly
緊密[kinmitsu] rigour
緊要[kinyou] momentous

緊褌[kinkon] loincloth
緊褌一番[kinkonichiban] gird oneself up
犢鼻褌[fudoshi] loincloth
越中褌[ecchuufundoshi] string loincloth
前褌[maemitsu] front of a mawashi

横褌[yokomitsu] either side of a rikishi's mawashi
褌担ぎ[fundoshikatsugi] rikishi of the lowest rank
六尺褌[rokushakufundoshi] traditional Japanese G-string for men
褌一つ[fundoshihitotsu] (wearing) a loincloth alone