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

一昨[issaku] one previous
一昨晩[issakuban] night before last
一昨夜[issakuya] night before last
昨今[sakkon] nowadays
昨春[sakushun] last spring

昨年[sakunen] last year
昨晩[sakuban] last night
昨夜[sakuya] evening
一昨々日[sakiototsui] two days before yesterday