zone fire

NOUN
9 LETTERS · STARTS WITH Z

zone fire is a valid 9-letter word worth 20 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
Z10O1N1E1F4I1R1E1
10 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does zone fire mean?

NOUN · 1 SENSE
1

Artillery or mortar fire delivered in a constant direction at several quadrant elevations.