case hardening

14 LETTERS · STARTS WITH C

case hardening is a valid 14-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1S1E1H4A1R1D2E1N1I1N1G2

3 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 2 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does case hardening mean?