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Definition of lengthen
lengthen
/ˈlɛŋ.θən/
length · en
Adjective:long
•Past Simple:lengthened
•Past Participle:lengthened
•Present Participle:lengthening
lengthen Lexical Profile
CEFR
B1
Grade
4
Tier
2
Usage
Top 10k
Syllables
2
lengthen Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• verb
1
To make or become longer in physical dimension or spatial extent.
Example
"The tailor offered to lengthen the sleeves of the jacket so it would fit properly."
2
To make or become longer in duration or time.
Example
"As spring approaches, the days gradually lengthen and the weather grows warmer."
Synonyms
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View all antonyms for lengthen• Rhymes for lengthen
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Word Origin & Etymology
Formed in Middle English from the noun length and the verb-forming suffix -en, replacing the earlier Old English verb lengan.
Cite this Entry
Wordmom. (2026). Definition of Lengthen. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/lengthen