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Definition of prolong
prolong
/prəˈlɒŋ/
pro · long
Adjective:prolonged
•Past Simple:prolonged
•Past Participle:prolonged
•Present Participle:prolonging
prolong Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 5k
Syllables
2
prolong Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• verb
1
To extend the duration of something; to cause to continue for a longer time.
Example
"Regular maintenance and timely repairs will significantly prolong the lifespan of the engine."
Synonyms
View all synonyms for prolong Antonyms
View all antonyms for prolong• Rhymes for prolong
• Nearby Words
Word Origin & Etymology
Borrowed in the late Middle Ages from Old French prolonguer, from Late Latin prolongare ('to lengthen or extend'), formed from Latin pro- ('forward, forth') and longus ('long').
Cite this Entry
Wordmom. (2026). Definition of Prolong. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/prolong