Impulse
Impulse noun - Something that arouses action or activity.
Propulsion is a synonym for impulse in throb topic. In some cases you can use "Propulsion" instead a noun "Impulse".
Propulsion
Propulsion noun - The act of propelling.
Impulse is a synonym for propulsion in power topic. You can use "Impulse" instead a noun "Propulsion", if it concerns topics such as force, thrust.
Nearby Word: propulsive
Mutual synonyms
Related pairs
How words are described
Both words in one sentence
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In Real Life Wil Wheaton did this when working on Star Trek: The Next Generation, inventing imaginary things he had to push to send the commands he'd logically need to send, like 'propulsion', 'impulse', 'to 50%'.
Source: Plot-Sensitive Button -
VASIMR / Electric Propulsion - a spaceship driven by VAriable Specific-Impulse Magnetoplasma Rockets, a type of electromagnetic plasma engine which heats propellant and ionizes it before accelerating it out through magnetic fields to generate thrust.
Source: Cool Starship - Even high-impulse propulsion like Orion Drive or antimatter would need to set aside space for storage, and those especially would be most prone to disaster, requiring complicated containment systems for safety.
Cite this Source
Propulsion and Impulse. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impulse/propulsion
Impulse & Propulsion. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impulse/propulsion>.
Propulsion or Impulse. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impulse/propulsion.
Google Ngram Viewer shows how "impulse" and "propulsion" have occurred on timeline