ground plane

12 LETTERS · STARTS WITH G

ground plane is a valid 12-letter word worth 15 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

G2R1O1U1N1D2P3L1A1N1E1

2 + 1 + 1 + 1 + 1 + 2 + 0 + 3 + 1 + 1 + 1 + 1 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does ground plane mean?