booster rocket

NOUN /bustər_'rɑkɪt/
14 LETTERS · STARTS WITH B

booster rocket is a valid 14-letter word worth 21 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3O1O1S1T1E1R1R1O1C3K5E1T1
3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 5 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does booster rocket mean?

NOUN · 1 SENSE
1

The first stage of a multistage rocket.