auxiliary boat

14 LETTERS · STARTS WITH A

auxiliary boat is a valid 14-letter word worth 25 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1U1X8I1L1I1A1R1Y4B3O1A1T1

1 + 1 + 8 + 1 + 1 + 1 + 1 + 1 + 4 + 0 + 3 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does auxiliary boat mean?