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

茜差す空[akanesasusora] glowing sky
一差し[hitosashi] dance
雲泥の差[undeinosa] wide difference
仮差押[karisashiosae] provisional seizure
価格差[kakakusa] price margin

格差[kakusa] qualitative difference
確率誤差[kakuritsugosa] random error
目差[manazashi] (a) look
僅差[kinsa] narrow margin
僅少差[kinshousa] narrow majority