間あいの楔くさび

noun

wedge for securing objects together

A physical wedge inserted between parts to tighten or secure a joint, especially in woodworking or construction.

• 大だい工くは間あいの楔くさびを打うち込こんで、柱はしらをしっかり固こ定ていした。

  The carpenter drove in a wedge to firmly secure the pillar.

noun

tie; bond; connection between people

Metaphorical use: a person or thing that serves as a link or bond between two parties, often in relationships or alliances.

• 彼かの女じょは二人ふたりの間あいの楔くさびとなって、チームをまとめた。

  She acted as a bond between the two, bringing the team together.