SUPPLEMENT Synonyms: 102 Similar and Opposite Words

supplement 1 of 2

noun

ˈsə-plə-mənt

Definition of supplement

as in increase

something added (as by growth) this new rule restricting e-mail to job-related activity is only a supplement to the preexisting policy regarding personal use of company resources

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Relevance

Antonyms & Near Antonyms

as in complement

something that serves to complete or make up for a deficiency in something else recommends taking a vitamin C supplement to prevent colds

Synonyms & Similar Words

as in appendix

a part added at the end of a book or periodical a supplement containing biographical articles on women who had died since the publication of the original three-volume encyclopedia

Synonyms & Similar Words

Antonyms & Near Antonyms

supplement

2 of 2

verb

as in to complement

Related Words

Dissimilar Words

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 supplement

Noun

Controversial in supplement form, what’s undeniable about collagen is its importance in the structure of the skin and function in our bodies. — Alessandra Signorelli, Vogue, 18 Oct. 2026 All four movies exhibit Mackenzie’s knack for trenchant social and political commentary slightly heightened by his elegance as a dramatist and visceral genre filmmaker, and all are accompanied by illuminating supplements. — Jim Hemphill, IndieWire, 16 Oct. 2026

Verb

The nutritionist recommended one bottle of formula per day to supplement her intake, then two, and then multiple bottles per day. — Raj Panjabi, Time, 13 Oct. 2026 Alongside the dump, NASA also released a trio of documents that help supplement the trove of unfiltered data. — Terrence O'Brien, The Verge, 11 Oct. 2026 See All Example Sentences for supplement

Recent Examples of Synonyms for supplement

Noun

Maine, North Carolina and Ohio also have seen increases of more than 30% in early in-person and mail voting compared with the same point in 2022.

— Arkansas Online, Arkansas Online, 23 Oct. 2026
Washington State reported a much lower $86 million for 2026; however, that’s an increase of $11 million from 2025, as the athletic department has returned to a budget equal to the final year of the old Pac-12 in fiscal 2024.

— Shaun Goodwin, Idaho Statesman, 22 Oct. 2026

Definition of increase

Noun

Moreover, in the book’s appendices, King rates Mahomes the fourth-best quarterback in pro football history behind Brady, Otto Graham and Montana.

— Kansas City Star, Kansas City Star, 9 Oct. 2026
Nothing stops someone in a hurry from pasting a payroll appendix into a public chatbot for a summary.

— Ethan Pham, Forbes.com, 29 Sep. 2026

Definition of appendix

Noun

This year, thanks to the surge in oil prices caused by the war in Iran, Diamondback’s second-quarter profits per share more than doubled from last year; Wall Street expects another boost when third-quarter earnings are released in a few weeks.

— Tim McDonnell, semafor.com, 22 Oct. 2026
The biggest gains are in the Nasdaq , which is getting a boost from SpaceX's 8% post-earnings pop and gains in chip stocks.

— Jeff Marks, CNBC, 21 Oct. 2026

Definition of boost

Noun

Chinese automakers’ gains in Britain show how quickly consumers will consider a new competitor when the product delivers.

— Rick Lazio, Fortune, 24 Oct. 2026
Existing bank account takeover A criminal gains access to your existing checking account, savings account, retirement account or payment app.

— Kurt Knutsson, FOXNews.com, 24 Oct. 2026

Definition of gain

Browse Nearby Words

supple

supplement

supplemental

See all Nearby Words

Cite this Entry

Style

“Supplement.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supplement. Accessed 27 Oct. 2026.

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Synonyms of supplement

noun

verb

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