Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

supplement

noun

Synonyms and Antonyms of supplement

  1. 1 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 accretion, accrual, addendum, addition, augmentation, boost, expansion, gain, increment, more, plus, proliferation, raise, rise, step-up, increase, uptickRelated Words accumulation, assemblage, collection, gathering; complement; accession, appendix, continuation, extension, uptrend, upturn; jump, run-up, spikeNear Antonyms deduction, subtractionAntonyms abatement, decline, decrease, decrement, depletion, diminishment, diminution, drop-off, fall, falloff, lessening, loss, lowering, reduction, shrinkage, step-down

  2. 2 something that serves to complete or make up for a deficiency in something else <recommends taking a vitamin C supplement to prevent colds> Synonyms correlate, complementRelated Words addendum, addition, appendix; adjunct, annex, appendage, extension; accessory (also accessary), accompaniment, appliance, attachment; additive, filler

  3. 3 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 afterword, appendix, codicil, excursus, addendumRelated Words coda, epilogue (also epilog), postlude; conclusion, ending, finale; accompaniment, addition, complement, postscript; follow-up, sequel; documentation; allonge, riderAntonyms foreword, introduction, preface, prologue (also prolog)





Seen and Heard

What made you want to look up supplement? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez duvet kittly-benders spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ