Is “Slab” a Scrabble word?
Yes
SLAB
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Slab
/slæb/
noun
1.A large, flat piece of solid material; a solid object that is large and flat.
2.A paving stone; a flagstone.
3.A carton containing 24 cans of beer.
verb
1.To make something into a slab.