ground school

13 LETTERS · STARTS WITH G

ground school is a valid 13-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

G2R1O1U1N1D2S1C3H4O1O1L1

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

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does ground school mean?