advance guard

13 LETTERS · STARTS WITH A

advance guard is a valid 13-letter word worth 20 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1D2V4A1N1C3E1G2U1A1R1D2

1 + 2 + 4 + 1 + 1 + 3 + 1 + 0 + 2 + 1 + 1 + 1 + 2 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does advance guard mean?