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

１枚[ichimai] one thin flat object
一枚下[ichimaishita] one step lower
一枚貝[ichimaigai] univalve
一枚看板[ichimaikanban] (a) leading player
一枚岩[ichimaiiwa] monolith

一枚上[ichimaiue] one step higher
何枚[nanmai] how many thin flat objects?
３枚[sanmai] three flat objects (e.g. tickets, pieces of cloth, etc.)
三枚目[sanmaime] comedian
紙一枚[kamiichimai] one sheet of paper

片口鰯[katakuchiiwashi] Japanese anchovy (Engraulis japonica)
半片[hanpen] pounded fish cake
鴉片窟[ahenkutsu] opium den
一日片時[ichinichihenji] short time
一片[ippen] (a) slice

花片[kahen] petal
欠片[kakera] fragment
跡片付け[atokatazuke] tidying up
砕片[saihen] debris
細片[saihen] crumbling