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Pronunciation varies by accent · adjective
Of or relating to a design of internal combustion engine in which the pistons perform four strokes per engine cycle: intake, compression, power, exhaust..
This motorbike has a four-stroke engine.
This is a 16-cylinder unit with the cylinders arranged in vee formation, operating on the four-stroke cycle and pressure-charged by four Napier exhaust gas-driven turbo-chargers.
Use four-stroke when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Four-stroke means Of or relating to a design of internal combustion engine in which the pistons perform four strokes per engine cycle: intake, compression, power, exhaust..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
This motorbike has a four-stroke engine.
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