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

コマ割り[komawari] panel layout
一割[ichiwari] ten percent
一割引き[ichiwaribiki] 10% off sale
学割り[gakuwari] student discount
額面割れ[gakumenware] drop below par

割く[saku] to tear
割引券[waribikiken] discount coupon or ticket
割引く[waribiku] to discount
割り栗[wariguri] rubble
割り栗石[wariguriishi] crushed rock