head joint

10 LETTERS · STARTS WITH H

head joint is a valid 10-letter word worth 20 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4E1A1D2J8O1I1N1T1

4 + 1 + 1 + 2 + 0 + 8 + 1 + 1 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does head joint mean?