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

The allowance is a pay supplement granted to some senior county officials and all commissioners as part of their compensation. — Douglas Hanks, Miami Herald, 8 Oct. 2026

Dermatologists and trichologists say supplements can help, but only when matched to the right diagnosis and the right ingredients. — Hanna Wickes, Fort Worth Star-Telegram, 7 Oct. 2026

Verb

That data can supplement the CIT’s primary identification functions. — Aamir Khollam, Interesting Engineering, 29 Sep. 2026

Extending the labor pool In Atlanta, AI and other agetech developments are increasingly being explored as tools to supplement the caregiving workforce, said Jeff Gray, founder and CEO of AgeTech Atlanta. — Elizabeth Green, AJC.com, 24 Sep. 2026