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Definition of propulsion
propulsion
/prəˈpʌl.ʃən/
pro · pul · sion
Adverb:propulsively
•Plural:propulsions
•Adjective:propulsive
propulsion Lexical Profile
CEFR
C1
Grade
9
Tier
2
Usage
Top 10k
Syllables
3
propulsion Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The action or process of driving or pushing an object forward.
Example
"Squid rely on jet propulsion to move rapidly through the water when escaping predators."
2
A mechanical system or power source used to generate thrust and move a vehicle, aircraft, or vessel.
Example
"Engineers are testing a new electric propulsion system designed for deep-space satellites."
Synonyms
View all synonyms for propulsion Antonyms
View all antonyms for propulsion• Rhymes for propulsion
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Word Origin & Etymology
Borrowed in the early 17th century from Medieval Latin propulsio, derived from the Latin verb propellere ('to drive forward'), combining pro- ('forward') and pellere ('to push or drive').
Cite this Entry
Wordmom. (2026). Definition of Propulsion. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/propulsion