advance base

12 LETTERS · STARTS WITH A

advance base is a valid 12-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1D2V4A1N1C3E1B3A1S1E1

1 + 2 + 4 + 1 + 1 + 3 + 1 + 0 + 3 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does advance base mean?