noun
Refers to the joint or hinge of a door, gate, or similar structure. Often used in carpentry and construction contexts.
この扉のつがい目が錆びて動かない。
The hinge of this door is rusted and won't move.
蝶番 is the more common word for a hinge, especially in everyday contexts. つがい目 is a less frequent term, often used in technical or traditional carpentry settings.
Compound of つがい (pair, coupling) and 目 (joint, point). The exact historical derivation is uncertain, but the word likely refers to the point where two parts are joined.