shift ballast

13 LETTERS · STARTS WITH S

shift ballast is a valid 13-letter word worth 20 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1H4I1F4T1B3A1L1L1A1S1T1

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

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does shift ballast mean?