輔ほ車しゃ唇しん歯し

noun

mutual dependence

Rare literary idiom describing a relationship of mutual reliance, like lips and teeth or cheek and jawbone. Also seen in the variant 唇歯輔車.

See also: 唇歯輔車

• 「輔ほ車しゃ唇しん歯し」は、互たがいに助たすけ合あう関かん係けいを表あらわす故こ事じ成せい語ごだ。

  「輔車唇歯」 is a classical idiom expressing a relationship of mutual support.