four-stroke engine

NOUN
18 LETTERS · STARTS WITH F

four-stroke engine is a valid 18-letter word worth 24 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4O1U1R1-0S1T1R1O1K5E1E1N1G2I1N1E1
4 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 5 + 1 + 0 + 1 + 1 + 2 + 1 + 1 + 1 =24 PTS
DOUBLE WORD → 48TRIPLE WORD → 72
MEANING

What does four-stroke engine mean?

NOUN · 1 SENSE
1

An internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke.