portable engine

15 LETTERS · STARTS WITH P

portable engine is a valid 15-letter word worth 19 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3O1R1T1A1B3L1E1E1N1G2I1N1E1

3 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 2 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does portable engine mean?