field fortification

19 LETTERS · STARTS WITH F

field fortification is a valid 19-letter word worth 30 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4I1E1L1D2F4O1R1T1I1F4I1C3A1T1I1O1N1

4 + 1 + 1 + 1 + 2 + 0 + 4 + 1 + 1 + 1 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =30 PTS

DOUBLE WORD → 60TRIPLE WORD → 90

MEANING

What does field fortification mean?