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

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

Synonyms & Similar Words

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

Synonyms & Similar Words

Antonyms & Near Antonyms

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

Synonyms & Similar Words

Antonyms & Near Antonyms

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 agreement lasts for three years but could be cut short or extended depending on whether the parties mutually determine the city and Police Department have reached compliance. — Sophie Bates, Los Angeles Times, 17 Oct. 2026 The Arlington Heights Yellowjackets continued their dominant season Friday, cruising to a dominant 71-0 victory over the North Side Steers and extending their unbeaten record. — Aliza Acuna, Fort Worth Star-Telegram, 17 Oct. 2026 For coastal communities, the implications extend beyond Antarctica. — Kaif Shaikh, Interesting Engineering, 17 Oct. 2026 But the potential consequences extend beyond Russia’s balance sheet. — Rebecca Schneid, Time, 17 Oct. 2026 See All Example Sentences for extend

Recent Examples of Synonyms for extend

Verb

The fund urged debt managers to lengthen maturities, warning that rollover risk could be exacerbated by strategies that replace long-term debt with short-term borrowing on a large scale.

— Anniek Bao, CNBC, 13 Oct. 2026
During construction, it was lengthened by 39 feet, adding a submarine hangar, a media studio, and a 3-D-printing and robotics laboratory.

— Robb Report, Robb Report, 9 Oct. 2026

Definition of lengthen

Verb

The company also offers add-ons like external paddleboard carriers and full-length overland roof racks.

— New Atlas, New Atlas, 15 Oct. 2026
Back before season one started, Dale Washberg came into Hoot Owl Books and offered Lee a Jim Thompson quote to jibe with his preferred job title — truthstorian.

— Amanda Whiting, Vulture, 15 Oct. 2026

Definition of offer

Verb

From elevating beds to expanding sections to sliding walls and even entire roofs, these 10 homes transform to get maximum use out of a compact space.

— New Atlas, New Atlas, 17 Oct. 2026
Blue Origin is expanding its Florida operations to support a much faster launch schedule, targeting multiple New Glenn flights per week by the end of the decade.

— Aamir Khollam, Interesting Engineering, 17 Oct. 2026

Definition of expand

Verb

Yet Tajul Islam Abdul Bari, who led immunization in Bangladesh until 2017, said campaigns usually demand months of planning.

— Arkansas Online, Arkansas Online, 18 Oct. 2026
OpenAI has reportedly floated the idea of giving the government up to a 5% stake in the company and suggested other leading AI companies do the same.

— Sarah Cannon, Fortune, 18 Oct. 2026

Definition of lead

Verb

To increase supply, the International Energy Agency agreed on Thursday to release more than 20 million barrels of fuel to the market.

— Arathy Somasekhar Reuters, Arkansas Online, 17 Oct. 2026
Preparing multiple missions Manufacturing more rocket hardware will not increase launch frequency unless teams can prepare several missions simultaneously.

— Aamir Khollam, Interesting Engineering, 17 Oct. 2026

Definition of increase

Verb

That’s not unusual — industries typically ask for a seat at the table, the better to steer discussions to their benefit and dilute any resulting rules.

— Business Columnist, Los Angeles Times, 13 Oct. 2026
Some French youths, like Lise, are concerned that all the talk about politics or references to the past take away from the present, and dilute the focus of student demands.

— Colette Davidson, Christian Science Monitor, 13 Oct. 2026

Definition of dilute

Verb

Ukraine's leader warned that easing sanctions without a commitment from Russia to de-escalate the war will only prolong it.

— Azhar Sukri, CNBC, 10 Oct. 2026
This is how most consumers first engage with collections, and re-sees create a second — and more intimate — moment for the pieces online, enabling brands to prolong the momentum, says Melbourne.

— Madeleine Schulz, Vogue, 8 Oct. 2026

Definition of prolong

Verb

Most questions were friendly and business-centric, but Marshall also gave his opinion on several polarizing issues, including federal immigration enforcement, tariffs and the war in Iran.

— Matthew Kelly, Kansas City Star, 17 Oct. 2026
Four turboprop engines power the aircraft, giving it the performance needed for demanding military transport operations.

— Aamir Khollam, Interesting Engineering, 17 Oct. 2026

Definition of give

Cite this Entry

Style

“Extend.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/extend. Accessed 20 Oct. 2026.

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Synonyms of extend

verb

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