noun
Familiar, affectionate term for one's own older brother, similar to お兄ちゃん but more casual. Used within the family or when speaking about one's brother to close friends.
See also: お兄ちゃん
兄ちゃん、宿題手伝ってくれる？
Big brother, can you help me with my homework?
うちの兄ちゃんは今大学生なんだ。
My older brother is a university student now.
noun
Informal, sometimes slightly rough way to address or refer to a young man, especially by an older person. Can sound friendly or condescending depending on tone. The reading あんちゃん is also used for this sense, often with a more rough or dialectal feel.
See also: お兄ちゃん
兄ちゃん、ちょっと道を教えてくれないか。
Hey, young man, can you tell me the way?
あの兄ちゃん、なかなかやるな。
That lad is pretty good, isn't he?
More polite and affectionate than 兄ちゃん, with the honorific お prefix. Commonly used by children or when addressing one's brother directly.
Rougher, more masculine term for older brother, often used among young men or in gangster contexts. Less common in family settings.
Derived from 兄 (ani, older brother) with the familiar suffix ちゃん. The reading あんちゃん is a phonetic variant, possibly influenced by dialect or casual speech.