How to say "propulsion" in Japanese
Choosing the right word
- 推進すいしんnoun, suru verb, transitive verbPropulsion as an act or process: the driving of a vehicle or craft forward. It names the action of propelling rather than the force that produces it.
- 推力すいりょくnounThrust or driving force: the push itself as a physical force, not the act of propelling. Choose it when the force — how strong it is, what produces it — is the point.
Use 推進 for propulsion as an action or process — driving something forward; use 推力 for thrust, the propulsive force itself, when the emphasis falls on the force rather than the act.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
