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

偏れる[fureru] to swing
標準偏差[hyoujunhensa] standard deviation
不偏[fuhen] impartiality
不偏不党[fuhenfutou] impartiality
偏に[hitoeni] earnestly

偏り[katayori] deviation
偏り見る[katayorimiru] to show partiality
偏愛[henai] favoritism
偏狂[henkyou] monomania