tongue-and-groove joint

[ tuhng-uhn-groov ]

noun

, Carpentry.

1. a joint between two boards in which a raised area on the edge of one board fits into a corresponding groove in the edge of the other to produce a flush surface.

tongue-and-groove joint

noun

1. a joint made between two boards by means of a tongue along the edge of one board that fits into a groove along the edge of the other board

Word History and Origins

Origin of tongue-and-groove joint¹

First recorded in 1875–80