lengthen

verb

length·​en ˈleŋ(k)-thən How to pronounce lengthen (audio)
ˈlen(t)-
lengthened; lengthening
ˈleŋ(k)th-niŋ,
ˈlen(t)th-;
ˈleŋ(k)-thə- How to pronounce lengthen (audio)
ˈlen(t)-

transitive verb

: to make longer

intransitive verb

: to grow longer
lengthener
ˈleŋ(k)th-nər
ˈlen(t)th-;
ˈleŋ(k)-thə- How to pronounce lengthen (audio)
ˈlen(t)-
noun
Choose the Right Synonym for lengthen

extend, lengthen, prolong, protract mean to draw out or add to so as to increase in length.

extend and lengthen imply a drawing out in space or time but extend may also imply increase in width, scope, area, or range.

extend a vacation
extend welfare services
lengthen a skirt
lengthen the workweek

prolong suggests chiefly increase in duration especially beyond usual limits.

prolonged illness

protract adds to prolong implications of needlessness, vexation, or indefiniteness.

protracted litigation

Examples of lengthen in a Sentence

The days lengthened with the approach of spring. Proper care will lengthen the life of the engine. lengthen a pair of trousers
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The speaker election is often a formality, with one simple round of voting, but in 2023, a pair of prolonged elections, in January and October, lengthened the usually quick process. Jack Birle, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 29 Dec. 2024 Brunson and Towns are confounding opposing defenses in two-man action, and this starting lineup can comfortably go five out to lengthen and distort the floor. Steven Louis Goldstein, The Athletic, 25 Dec. 2024 Besides providing veteran leadership and lengthening the already potent lineup of the Yankees, Goldschmidt could also hold the key to who will play third base next season in the Bronx. Wayne G. McDonnell, Jr., Forbes, 21 Dec. 2024 They’re made from four-way stretch denim, and they’re designed to lift and lengthen with some compression, according to the brand. Carly Totten, Southern Living, 14 Dec. 2024 See all Example Sentences for lengthen 

Word History

First Known Use

14th century, in the meaning defined at transitive sense

Time Traveler
The first known use of lengthen was in the 14th century

Dictionary Entries Near lengthen

Cite this Entry

“Lengthen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lengthen. Accessed 6 Jan. 2025.

Kids Definition

lengthen

verb
length·​en ˈleŋ(k)-thən How to pronounce lengthen (audio)
ˈlen(t)-
lengthened; lengthening ˈleŋ(k)th-(ə-)niŋ How to pronounce lengthen (audio)
ˈlen(t)th-
: to make or become longer
lengthener noun

More from Merriam-Webster on lengthen

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!