兄あに貴き分ぶん

noun

senior group member; leader among peers

Refers to a person who acts as an older-brother figure or senior within a group, especially in informal or hierarchical settings like gangs, clubs, or workplaces.

• 彼かれはチームの兄あに貴き分ぶんとしてみんなから頼たよられている。

  He is relied on by everyone as the big-brother figure of the team.

expression

like an older brother; big brother

Used in the pattern 「〜の兄貴分」 to describe someone who is like an older brother to another person. The cross-reference to 分 (ぶん) sense 4 indicates this is a suffix-like usage meaning 'in the role of'.

See also: 分 (ぶん)

• 田た中なかさんは私わたしにとって兄あに貴き分ぶんのような存そん在ざいです。

  Mr. Tanaka is like an older brother to me.