lengthen

verb

length·​en ˈleŋ(k)-thən 

ˈlen(t)-

lengthened; lengthening

ˈleŋ(k)th-niŋ,

ˈlen(t)th-;

ˈleŋ(k)-thə- 

ˈlen(t)-

transitive verb

: to make longer

intransitive verb

: to grow longer

lengthener

ˈleŋ(k)th-nər

ˈlen(t)th-;

ˈleŋ(k)-thə- 

ˈlen(t)-

noun

Synonyms

• drag (out)
• draw out
• elongate
• extend
• outstretch
• prolong
• protract
• stretch

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

In the air, the 6.9-foot-wide (2.1-m) wing increases lift and improves glide with the intent of lengthening the overall flight distance and time in the air. —New Atlas, 5 Nov. 2024

Easter cactus, for example, begins blooming when days lengthen in early spring. —Megan Hughes, Better Homes & Gardens, 27 Oct. 2024

This also happens to be one of the last Bugs Bunny shorts made before another animator in Clampett’s unit, Robert McKimson, refreshed the bunny’s design: raising him a little taller, lengthening his ears, and widening his mouth to accentuate his murine mandibles. —Eric Vilas-Boas, Vulture, 8 Oct. 2024

White House and State Department officials held their breath when the short cease-fire began in November 2023, hopeful it could be lengthened until an uneasy peace turned into the status quo. —Shannon K. Kingston, ABC News, 7 Oct. 2024

Word History

First Known Use

14th century, in the meaning defined at transitive sense

Kids Definition

lengthen

verb

length·​en ˈleŋ(k)-thən 

ˈlen(t)-

lengthened; lengthening ˈleŋ(k)th-(ə-)niŋ 

ˈlen(t)th-

: to make or become longer

lengthener

ˈleŋ(k)th-(ə-)nər 

ˈlen(t)th-

noun