Clapboard and Slab

Clapboard noun - A long thin board with one edge thicker than the other; used as siding by lapping one board over the board below.

Slab and clapboard are semantically related. in made of timber topic. In some cases you can use "Slab" instead an adjective "Clapboard".

Slab noun - Block consisting of a thick piece of something.

Clapboard and slab are semantically related. You can use "Clapboard" instead an adjective "Slab".