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

一般幕僚[ippanbakuryou] general staff
一幕[hitomaku] one act
一幕物[hitomakumono] (a) one-act play
引幕[hikimaku] draw curtain
煙幕[enmaku] smokescreen

下げ幕[sagemaku] drop curtain
開幕[kaimaku] raising the curtain
旧幕[kyuubaku] the old feudal government
銀幕[ginmaku] silver screen (movies)
見幕[kenmaku] threatening attitude