different between matchboard vs matchboarding

English

match +? board

matchboard (countable and uncountable, plural matchboards)

(carpentry) A type of wooden board that connects with others using a tongue and groove system
(sand casting) 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.

matchboarding (uncountable)

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