expansion gear

14 LETTERS · STARTS WITH E

expansion gear is a valid 14-letter word worth 23 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

E1X8P3A1N1S1I1O1N1G2E1A1R1

1 + 8 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does expansion gear mean?