Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun propulsion

2 senses of propulsion

Sense 1
propulsion -- (a propelling force)
       => force -- ((physics) the influence that produces a change in a physical quantity; "force equals mass times acceleration")

Sense 2
propulsion, actuation -- (the act of propelling)
       => act, deed, human action, human activity -- (something that people do or cause to happen)