underbuilding

13 LETTERS · 4 SYLLABLES · STARTS WITH U

underbuilding is a valid 13-letter word worth 18 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

U1N1D2E1R1B3U1I1L1D2I1N1G2

1 + 1 + 2 + 1 + 1 + 3 + 1 + 1 + 1 + 2 + 1 + 1 + 2 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does underbuilding mean?