vertical fire

13 LETTERS · STARTS WITH V

vertical fire is a valid 13-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

V4E1R1T1I1C3A1L1F4I1R1E1

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

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does vertical fire mean?