EXTEND Synonyms: 210 Similar and Opposite Words

Q: How does the verb 'extend' contrast with its synonyms?

Some common synonyms of extend are lengthen , 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

Q: When would 'prolong' be a good substitute for 'extend'?

The words prolong and extend can be used in similar contexts, but prolong suggests chiefly increase in duration especially beyond usual limits. // prolonged illness

Q: How do 'protract' and 'prolong' relate to one another, in the sense of 'extend'?

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

extend

verb

ik-ˈstend

Definition of extend next

as in to lengthen

to make longer our guests from out of town extended their visit by a week

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in to offer

to put before another for acceptance or consideration the couple extended an invitation to join them for a get-together at their house after the concert

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Antonyms & Near Antonyms

as in to expand

to arrange the parts of (something) over a wider area you can extend that chaise longue so that it lies completely flat

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as in to lead

to be positioned along a certain course or in a certain direction our backyard extends all the way to that brook

Synonyms & Similar Words

as in to increase

to make greater in size, amount, or number embarked on a series of wars intended to extend his empire

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as in to dilute

to alter (something) for the worse with the addition of foreign or lower-grade substances the company extends its ice cream with thickeners and other additives

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How does the verb extend contrast with its synonyms?

Some common synonyms of extend are lengthen, 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 would prolong be a good substitute for extend?

The words prolong and extend can be used in similar contexts, but prolong suggests chiefly increase in duration especially beyond usual limits.

prolonged illness

How do protract and prolong relate to one another, in the sense of extend?

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

protracted litigation

Example Sentences

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.

Recent Examples of extend The Acropolis and the Roman Agora are among the headline venues, but the festival extends to more than 100 archaeological sites, monuments and museums nationwide. —

Hanna Wickes, Sacbee.com, 2 June 2026 Phison says aiDAPTIV addresses this limitation by extending working memory beyond traditional DRAM and into high-performance NAND flash storage. —

Neetika Walter, Interesting Engineering, 2 June 2026 The gas tax suspension was originally supposed to end on May 19, but Governor Brian Kemp extended the relief to help motorists get through Memorial Day weekend. —

Irene Wright, USA Today, 2 June 2026 The last two classes have been ranked second (2026) and third (2025), extending the Crimson Tide’s streak of top-five hauls to 19 years. —

Grace Raynor, New York Times, 2 June 2026 See All Example Sentences for extend

Recent Examples of Synonyms for extend

Verb

Storing in the refrigerator lengthens that time to six to eight months.

— Kait Hanson, Southern Living, 29 May 2026
As a musician, Holloway’s voice is inseparable from his identity and livelihood, and going on testosterone — which causes the vocal folds to thicken and lengthen, lowering pitch, while also enlarging the larynx — terrified him.

— Leslie Katz, Forbes.com, 28 May 2026