expansion joint

15 LETTERS · STARTS WITH E

expansion joint is a valid 15-letter word worth 30 points in Scrabble and 36 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

E1X8P3A1N1S1I1O1N1J8O1I1N1T1

1 + 8 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 8 + 1 + 1 + 1 + 1 =30 PTS

DOUBLE WORD → 60TRIPLE WORD → 90

MEANING

What does expansion joint mean?