물체를 앞방향으로 밀어내거나 나아가게 하는 작용 또는 그 힘.
The action of driving or pushing an object forward, or the force that provides this movement.
예문:
"The rocket's propulsion system failed shortly after liftoff, causing it to veer off course."
"Squids use a form of jet propulsion to move rapidly through the water."
"Electric motors provide a cleaner alternative for vehicle propulsion compared to internal combustion engines."