# supplement

> English word · Noun · IPA /ˈsʌp.lɪ.mənt/ · frequency rank #6,842

## Definitions
1. Something added; especially, such an addition added to make up for a deficiency.
2. An extension to a document or publication that adds information, corrects errors, or brings up to date.
3. An additional section of a newspaper devoted to a specific subject; an additional section of a journal issue, or an additional issue, for a similar purpose.
4. An angle that, when added to a given angle, makes 180°; a supplementary angle.
5. A vitamin, herbal extract, or chemical compound ingested to meet dietary deficiencies or enhance muscular development; the dosage form that conveys or embodies it (e.g., tablet, capsule, pill, powder, beverage).
6. A surcharge, additional cost, especially for food in a restaurant.
7. An adjunct that is nonessential, especially a supplementary relative clause.

## Etymology
From Latin supplementum (“that which is added to supply a shortage”), from supplere (“to provide something”).

## Easily confused with
- **supplemental** (https://plainspell.com/en/vs/supplement-vs-supplemental)

## Common misspellings (14)
`spuplement`, `ssupplement`, `suplement`, `suplpement`, `suppelment`, `suppleemnt`, `supplemennt`, `supplementt`, `supplemetn`, `supplemment`, `supplemnet`, `suppllement`, `supplmeent`, `uspplement`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/supplement