father of the submarine

NOUN
23 LETTERS · STARTS WITH F

father of the submarine is a valid 23-letter word worth 36 points in Scrabble and 38 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4A1T1H4E1R1O1F4T1H4E1S1U1B3M3A1R1I1N1E1
4 + 1 + 1 + 4 + 1 + 1 + 0 + 1 + 4 + 0 + 1 + 4 + 1 + 0 + 1 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 =36 PTS
DOUBLE WORD → 72TRIPLE WORD → 108
MEANING

What does father of the submarine mean?

NOUN · 1 SENSE
1

American inventor who in 1775 designed a man-propelled submarine that was ineffectual but subsequently earned him recognition as a submarine pioneer (1742-1824).