Synonyms of supplement

supplement 1 of 2

noun

ˈsə-plə-mənt 

1

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

Synonyms & Similar Words

• increase
• boost
• addition
• gain
• raise
• rise
• augmentation
• increment
• accrual
• expansion
• plus
• addendum
• proliferation
• step-up
• accretion
• accumulation
• continuation
• complement
• more
• uptick
• collection
• extension
• appendix
• gathering
• jump
• spike
• assemblage
• upturn
• accession
• uptrend
• run-up

Antonyms & Near Antonyms

• reduction
• decrease
• depletion
• loss
• decline
• lowering
• diminution
• fall
• shrinkage
• lessening
• abatement
• decrement
• deduction
• diminishment
• subtraction
• step-down
• falloff
• drop-off

2

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

• complement
• addition
• extension
• additive
• correlate
• appendix
• accompaniment
• annex
• adjunct
• filler
• accessory
• addendum
• appendage
• appliance
• attachment

3

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

• appendix
• addendum
• codicil
• addition
• afterword
• conclusion
• documentation
• epilogue
• complement
• excursus
• accompaniment
• sequel
• coda
• ending
• postscript
• finale
• follow-up
• rider
• postlude
• allonge

Antonyms & Near Antonyms

• introduction
• preface
• foreword
• prologue

supplement

2 of 2

verb

as in to complement

Related Words

• complement
• add (to)
• flesh (out)
• enlarge (on or upon)
• amplify
• expand
• develop
• elaborate (on)
• dilate (on or upon)
• run on
• expatiate
• discourse
• ramble

Dissimilar Words

• shorten
• contract
• condense
• summarize
• abridge
• compress
• outline
• sum up
• abbreviate

Example Sentences

Recent Examples of supplement

Noun

Specifically, medications like antidepressants, diabetes medications, and supplements can alter sweat and body odor. — Jennifer Byrne, Popular Science, 13 Aug. 2026

Because supplements don't have to undergo FDA approval for safety or effectiveness before being sold, Wood also recommends looking for products independently tested by a reputable third party. — Dr. Onaola Adedeji, ABC News, 13 Aug. 2026

Verb

Following the film’s premiere, many critics praised it for both a joyful depiction of Tokyo’s ballroom dance scene and its ability to supplement its joyful romantic swings with pathos. — Christian Zilko, IndieWire, 29 July 2026

To help increase their reach, some home-share programs now supplement or replace the traditionally labor-intensive matching process with online platforms. — Paula Span, Miami Herald, 29 July 2026