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

異宗[ishuu] different religion or sect
一宗[isshuu] sect
改宗[kaishuu] religious conversion
邪宗[jashuu] heresy
宗家[souke] head of family

宗教[shuukyou] religion
宗教団体[shuukyoudantai] religious group
宗教的独立性[shuukyoutekidokuritsusei] religious independence
宗教法人[shuukyouhoujin] religious organization