► 名詞
兄 [(1)あに] meaning: brother rank: 1
☆ うちの兄 ⇨ My older brother (☛ An older brother)
兄ちゃん [(1)にいちゃん] [coll] [family] meaning: brother rank: 2
☆ 兄ちゃん、どうしたの？ ⇨ Big brother, what happened? (☛ Used by younger siblings to address an older brother)
兄ちゃん [(1)にいちゃん] [coll] [rude] meaning: man rank: 2
☆ おい兄ちゃん、なんのつもりだよ ⇨ Hey dude, what the hell is your problem? (☛ A young man)
兄さん [(1)にいさん] [coll] [男] meaning: brother rank: 3
☆ 兄さん！ ⇨ Big brother! (☛ Often used to address a man senior to you in family (or a family-like group), regardless of blood relations)
兄ちゃん [(1)あんちゃん] [coll] [rude] [男] meaning: man rank: 4
☆ よう、あんちゃん ⇨ Yo, bro, dude (☛ A young man)