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

Australia Prime Minister $448,819 A$239,270 parliamentary base plus a PM supplement equal to 160% of base. — Lim Hui Jie, CNBC, 9 Sep. 2026

Book Recommendations Resources This supplement did not involve the editorial or reporting staff of the Los Angeles Times except where noted. — Los Angeles Times, 9 Sep. 2026

Verb

To supplement the native food sources, Mizejewski recommends feeding in moderation with just one or two feeders. — Mary Marlowe Leverette, Southern Living, 5 Sep. 2026

Chen said that the company’s robots will supplement human manpower, not replace it. — Los Angeles Times, 3 Sep. 2026