► 名詞お兄ちゃん  [(2)おにいちゃん]  [coll]  [family]    
meaning:  brother  rank: 2☆ お兄ちゃん、これ
開けて ⇨ Big brother, can you open this for me?  
(☛ Used by younger siblings to address an older brother)More examples:- 彼はお兄ちゃんのお下がりを着ている ⇨ He is wearing his big brother’s hand-me-down