sweep over

VERB
10 LETTERS · STARTS WITH S

sweep over is a valid 10-letter word worth 17 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1W4E1E1P3O1V4E1R1
1 + 4 + 1 + 1 + 3 + 0 + 1 + 4 + 1 + 1 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does sweep over mean?