also: あに
noun
brother-in-law (spouse's older brother or older sister's husband)
Refers to a brother-in-law who is older than the speaker or the speaker's spouse. Used in formal and family contexts.
義兄は銀行に勤めています。
My brother-in-law works at a bank.
姉の夫、つまり私の義兄は料理が上手です。
My older sister's husband, that is, my brother-in-law, is good at cooking.
noun
older stepbrother
Used when referring to an older stepbrother, typically in formal or written contexts. In casual speech, 義理の兄 or simply 兄 may be used.
父の再婚で、義兄ができました。
I got an older stepbrother through my father's remarriage.
Gikun reading; rarely used in practice. The kanji 義兄 is normally read ぎけい.
Compound of 義 (ぎ, 'non-blood relation; in-law') and 兄 (けい, 'older brother'). The reading あに is a gikun (meaning-based reading) for the same kanji.