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

お嫁さん[oyomesan] bride
嫁ぐ[totsugu] to marry (of a woman)
嫁菜[yomena] aster
嫁取り[yometori] taking a wife
嫁入[yomeiri] marriage

花嫁[hanayome] bride
兄嫁[aniyome] elder brother's wife
再嫁[saika] remarriage
責任転嫁[sekinintenka] shift the responsibility (for something) on to (someone)