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

一興[ikkyou] amusement
感興[kankyou] interest
興がる[kyougaru] to be amused or interested in
興じる[kyoujiru] to amuse oneself
興す[okosu] to revive

興ずる[kyouzuru] to amuse oneself
興る[okoru] to rise
興亜[koua] Asia development
興起[kouki] rise
興業[kougyou] industrial enterprise