noun
right-hand man; trusted henchman
Literary term for a highly trusted subordinate or close aide, often in political or organizational contexts. Conveys deep reliance, similar to 'right-hand man'.
彼は社長の股肱として会社を支えてきた。
He has supported the company as the president's right-hand man.
将軍は股肱の臣を集めて作戦を練った。
The general gathered his trusted retainers and devised a strategy.