御兄さん[oniisan] older brother
御兄ちゃん[oniichan] familiar form of "older brother"
御兄弟[gokyoudai] siblings
家兄[kakei] (my) elder brother
雅兄[gakei] polite word in letter to friend

義兄[gikei] brother-in-law
兄さん[niisan] older brother
兄嫁[aniyome] elder brother's wife
兄貴[aniki] one's senior

愛煙家[aienka] heavy smoker
愛犬家[aikenka] lover of dogs
愛好家[aikouka] amateur
愛猫家[aibyouka] cat lover
為政家[iseika] politician

遺家族[ikazoku] bereaved family
医家[ika] doctor
育種家[ikushuka] (plant) breeder
一家団欒[ikkadanran] happy family get-together
厭世家[enseika] pessimist