兄貴|あにきaniki[1]atamadaka (head-high)

1. nounelder brother
   「そっか。暇ひまなら掃除そうじしといて」「なんだそれ。兄貴あにきをアゴで使つかうなよ」↗

   "Oh? If you're free get the cleaning done." "What's up with that? Don't order your brother around!"
2. nounone's senior
3. nounolder man; man older than oneself

• Synonym兄ちゃんにいちゃんCasualAn affectionate way to call one's own brother, also used to hail a strange young man. 「兄貴」 has a heartier, more respectful ring and is used mostly by men.
• Synonym兄さんにいさんNeutralUsed to address one's own or another's brother, friendly yet polite, by men and women alike. 「兄貴」 is rougher and mostly a male term.
• Synonym兄あにNeutralThe neutral way to mention one's own brother to outsiders. 「兄貴」 adds an affectionate tone and can also mean a gang or trade boss.
• Related兄者あにじゃWrittenAn archaic form of address seen mainly in period dramas and anime; not used in everyday modern speech.
• Related兄御あにごFormalA respectful term for another person's older brother, now dated; today one would say 「お兄さん」.
• Related大兄たいけいWrittenA written honorific for an older brother, also a second-person honorific in men's letters to older friends or seniors; in daily speech 「兄さん」 or 「兄貴」 is usual.
• Related兄いあにいCasualAn Edo-flavoured familiar term for a brother, senior, or dashing young man; more casual than 「兄貴」.
• Related兄様にいさまFormalA respectful term for one's brother with an old-fashioned, upper-class-family feel, found mostly in novels and anime; rare in daily use.
• Antonym弟おとうとNeutralThe plain, everyday word for a younger male sibling, opposite the older brother that 「兄貴」 denotes; it can also mean a younger brother-in-law or an apprentice.

Use 「兄貴」 to call or speak of your older brother with affection or respect, or for a big brother in a gang or trade. To mention him neutrally to outsiders say 「兄」; to address him directly, 「兄さん」 or 「兄ちゃん」. Forms like 「兄者」「兄御」「兄様」 are dated or literary; the everyday opposite is 「弟」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 親したしみの意いや尊敬そんけいの意いを表あらわして兄あにを表あらわす語ご。
2. 職人しょくにんや若者わかもの・やくざなどの集団しゅうだんに所属しょぞくする、年長者ねんちょうしゃ、または勢力せいりょくのある男おとこ。
3. 年上としうえの男おとこ。