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

漫ろ歩き[sozoroaruki] slow, relaxed walk
ひとり歩き[hitoriaruki] walking alone
一歩[ippo] (a) step
一歩一歩[ippoippo] step by step
一歩前進[ippozenshin] (a) step forward

横断歩道[oudanhodou] pedestrian crossing
牛歩戦術[gyuuhosenjutsu] snail's pace tactics
巨歩[kyoho] long strides
競歩[kyouho] walking race
健歩[kenpo] good walker

御金[okane] money
金糸雀[kinshijaku] canary (esp. the island canary, Serinus canaria)
違約金[iyakukin] penalty for contract breach
一刻千金[ikkokusenkin] every moment is precious
一字千金[ichijisenkin] word of great value

一時金[ichijikin] lump sum
一時賜金[ichijishikin] lump-sum grant
引き金を引く[hikiganewohiku] to pull the trigger
引当金[hikiatekin] reserves
隠れ借金[kakureshakkin] hidden debts