flying field

NOUN /flaɪɪŋ_fild/
12 LETTERS · 2 SYLLABLES · STARTS WITH F

flying field is a valid 12-letter word worth 22 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4L1Y4I1N1G2F4I1E1L1D2
4 + 1 + 4 + 1 + 1 + 2 + 0 + 4 + 1 + 1 + 1 + 2 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does flying field mean?