engine, motor
España le debe mucho al turismo como motor de su economía.
Spain owes a great deal to tourism as an engine of its economy.
Así que disparará al motor de Curtis, después de que este se canse.
So he'll shoot Curtis's engine after he gets tired.
— Porco Rosso (1992)
Tengo que desmantelar este motor.
I have to dismantle this engine.
Something has happened to the engine.