shiplap

As nouns the difference between rabbet and shiplap

is that rabbet is a longitudinal channel, groove, or recess cut out of the edge or face of a plank of wood or other material; especially, one intended to fit another member to form a joint while shiplap is a type of wooden board that has rabbets to allow them to be overlapped.

As a verb rabbet

is to cut a rabbet in a piece of material.

As nouns the difference between board and shiplap

is that board is a relatively long, wide and thin piece of any material, usually wood or similar, often for use in construction or furniture-making or board can be (basketball|informal) a rebound while shiplap is a type of wooden board that has rabbets to allow them to be overlapped.

As a verb board

is to step or climb onto or otherwise enter a ship, aircraft, train or other conveyance.

As an adjective wooden

is made of wood.

As a noun shiplap is

a type of wooden board that has rabbets to allow them to be overlapped.