supplement

verb

sup·​ple·​ment ˈsə-plə-ˌment How to pronounce supplement (audio)
supplemented; supplementing; supplements
Synonyms of supplementnext

transitive verb

: to add or serve as a supplement to
does odd jobs to supplement his income
supplementation noun
supplementer noun

Examples of supplement in a Sentence

She began supplementing her diet with vitamins.
Recent Examples on the Web
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.
The new Google Search profiles will supplement the search engine’s core results pages. Todd Spangler, Variety, 4 June 2026 The team’s priority for a new arena is creating ways to supplement its revenue by owning the surrounding area of its arena. Fort Worth Star-Telegram, 3 June 2026 All the while, special attention is paid to Basquiat’s mental and emotional state, with interviews from former friends and colleagues to supplement his sisters’ impressions. Pete Grathoff, Kansas City Star, 2 June 2026 Meanwhile, the 49ers have struggled to supplement their roster with stars after drafting them early in Shanahan’s tenure like George Kittle, Fred Warner and Bosa. Chris Biderman, Sacbee.com, 2 June 2026 See All Example Sentences for supplement

Word History

Etymology

derivative of supplement entry 1

First Known Use

1659, in the meaning defined above

Time Traveler
The first known use of supplement was in 1659

Browse Nearby Words

Cite this Entry

“Supplement.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supplement. Accessed 11 Jun. 2026.

Kids Definition

supplement

1 of 2 noun
sup·​ple·​ment ˈsəp-lə-mənt How to pronounce supplement (audio)
1
: something that supplies what is needed or makes an addition
vitamin pills used as dietary supplements
2
: an arc or angle that when added to a given arc or angle equals 180 degrees
supplemental
ˌsəp-lə-ˈment-ᵊl
adjective

supplement

2 of 2 verb
sup·​ple·​ment ˈsəp-lə-ˌment How to pronounce supplement (audio)
: to add to
supplement their incomes by doing odd jobs
supplementation noun

Medical Definition

supplement

1 of 2 noun
sup·​ple·​ment ˈsəp-lə-mənt How to pronounce supplement (audio)
1
: something that completes or makes an addition
2

supplement

2 of 2 transitive verb
sup·​ple·​ment ˈsəp-lə-ˌment How to pronounce supplement (audio)
: to add a supplement to : serve as a supplement for
utilizes … surgery to supplement the traditional treatmentTherapeutic Notes

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