Is “Cleft” a Scrabble word?

1.An opening, fissure, or V-shaped indentation made by or as if by splitting.

2.A piece made by splitting.

“a cleft of wood”

3.A disease of horses; a crack on the band of the pastern.

1.To syntactically separate a prominent constituent from the rest of the clause that concerns it, such as threat in "The threat which I saw but which he didn't see, was his downfall."