Looking up...
A term of endearment used by younger siblings (especially sisters) to address their older brother.
お兄ちゃん、この本読んでくれる？
Big brother, can you read this book to me?
お兄ちゃんは僕のヒーローだ。
My big brother is my hero.
Often used affectionately by younger sisters. Can also be used by close friends or romantic partners in some contexts.
While primarily used by younger sisters, it can also be used by younger brothers in some contexts, though this is less common.
Use 'お兄ちゃん' in informal settings. In formal contexts, use 'お兄さん' instead.
From 兄 (ani, older brother) + ちゃん (a diminutive suffix indicating affection or familiarity).
While primarily used by younger siblings, it can also be used by close friends or romantic partners in some contexts. The term carries a sense of affection and familiarity.