supplement

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noun

Definition of SUPPLEMENT

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, supplement, uptick

Related Words accumulation, assemblage, collection, gathering; complement; accession, appendix, continuation, extension, uptrend, upturn; jump, run-up, spike

Near Antonyms deduction, subtraction

Antonyms abatement, decline, decrease, decrement, depletion, diminishment, diminution, drop-off, fall, falloff, lessening, loss, lowering, reduction, shrinkage, step-down

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, supplement

Related Words addendum, addition, appendix; adjunct, annex, appendage, extension; accessory (also accessary), accompaniment, appliance, attachment; additive, filler

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, supplement

Related Words coda, epilogue (also epilog), postlude; conclusion, ending, finale; accompaniment, addition, complement, postscript; follow-up, sequel; documentation; allonge, rider

Antonyms foreword, introduction, preface, prologue (also prolog)