attack submarine

NOUN
16 LETTERS · STARTS WITH A

attack submarine is a valid 16-letter word worth 25 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1T1T1A1C3K5S1U1B3M3A1R1I1N1E1
1 + 1 + 1 + 1 + 3 + 5 + 0 + 1 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does attack submarine mean?

NOUN · 1 SENSE
1

A military submarine designed and armed to attack enemy shipping.