Synonyms of lengthen

lengthen

verb

ˈleŋ(k)-thən 

as in to extend

to make longer

I had to lengthen the handle of the paint roller in order to reach the top of the wall

Synonyms & Similar Words

• extend
• prolong
• increase
• stretch
• elongate
• protract
• expand
• drag (out)
• draw out
• enlarge
• outstretch
• amplify
• attenuate
• thin

Antonyms & Near Antonyms

• shorten
• cut
• reduce
• curtail
• decrease
• cut back
• diminish
• lessen
• abridge
• abbreviate
• thicken

Synonym Chooser

How does the verb lengthen contrast with its synonyms?

Some common synonyms of lengthen are extend, prolong, and protract. While all these words 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

When might prolong be a better fit than lengthen?

While the synonyms prolong and lengthen are close in meaning, prolong suggests chiefly increase in duration especially beyond usual limits.

prolonged illness

How are the words protract and prolong related as synonyms of lengthen?

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

protracted litigation

Example Sentences

Recent Examples of lengthen

Bracamontes said her daughter still can't feel or move her right foot and needs three more operations: one to relieve nerve pain, and two to try to restore mobility in her foot by lengthening her Achilles tendon and transferring a tendon in her left leg into her right. —Jordan Rau, CBS News, 27 Mar. 2025

Moreover, working the long head emphasizes the eccentric portion of a move—the part when the muscle is lengthening under load—which is a more effective way to improve strength, power, and speed performance compared to traditional resistance training, according to research. —Jenny McCoy, SELF, 9 Apr. 2025

Chronic pessimism damages your attitude and your telomeres—the protective tips at the end of chromosomes, shortened by negative thoughts and lengthened by positive thoughts. —Bryan Robinson, Forbes.com, 4 Apr. 2025

Driving the news: The freeze-free growing season lengthened between 1970 and 2024 in nearly 90% of the 198 cities analyzed by Climate Central, a research and communications group. —Esteban L. Hernandez, Axios, 2 Apr. 2025