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

While standard mascaras do the trick in lengthening, volumizing, darkening, and separating your lashes, waterproof mascaras are better suited for long-wear and durability. —Sarah Han, Allure, 24 Dec. 2024

From this point on, the days will gradually begin to lengthen again. —Brandi D. Addison, Austin American-Statesman, 21 Dec. 2024

Buxom lash volumizing mascara: on sale for $12 Original price: $26 A lengthening mascara, Buxum lash mascara offers three times the volume of other mascara options. —Christopher Murray, Fox News, 13 Dec. 2024

But, the days gradually begin to lengthen from there until the summer solstice, which is the longest day of the year. —Cailey Gleeson, Journal Sentinel, 21 Nov. 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