小便をする[shoubenwosuru] to pee
穏便[onbin] gentle
音便[onbin] euphony
花便り[hanadayori] news of cherry blossom blooming conditions
簡便[kanben] handy

雁の便り[karinotayori] (a) letter
共同便所[kyoudoubenjo] comfort station
軽便[keiben] convenience
検便[kenben] stool (feces) examination
公衆便所[koushuubenjo] public lavatory

雁の使い[karinotsukai] (a) letter
雁の文[karinofumi] (a) letter
雁の便り[karinotayori] (a) letter
雁行[gankou] the flight formation of geese
雁骨[kariganebone] scapula

雁字搦みに[ganjigaramini] (bind) firmly
雁首[karikubi] (something resembling a) goose's neck
雁首[gankubi] head of a pipe, incl. the bowl and stem attachment
雁書[gansho] letter
雁爪[ganzume] Japanese rake