floating mine

NOUN /floʊtɪŋ_maɪn/
13 LETTERS · STARTS WITH F

floating mine is a valid 13-letter word worth 18 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4L1O1A1T1I1N1G2M3I1N1E1
4 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 3 + 1 + 1 + 1 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does floating mine mean?

NOUN · 1 SENSE
1

An explosive mine designed to destroy ships that bump into it.

SYNONYMS
BROADER