noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A type of wooden board that connects with others using a tongue and groove system countable, uncountable
2. 2
   a board that has a groove cut into one edge and a tongue cut into the other so they fit tightly together (as in a floor) wordnet
3. 3
   A thin piece of material (such as wood, plaster, or metal) that forms and aligns the matched parting surfaces for the two parts (the cope and the drag) of a molding box or flask, to which board patterns are attached in some casting methods. countable, uncountable

Etymology

From match + board.

Related phrases

molding boxtongue and groove

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.