Word.ws English Dictionary

mouthguard

mouthguard noun: a device that fits into the mouth over one or both arches of the teeth and usually made of plastic. Such devices may protect against injury during sport or fighting or may serve a medical purpose.

Noun

mouthguard (plural mouthguards)

  1. (US) A device that fits into the mouth over one or both arches of the teeth and usually made of plastic. Such devices may protect against injury during sport or fighting or may serve a medical purpose.
    Synonyms:
    gumshield

Synonyms of mouthguard

Forms of mouthguard

pluralmouthguards

Origin of mouthguard

From mouth + guard.

Questions about mouthguard

What does mouthguard mean?
Mouthguard means a device that fits into the mouth over one or both arches of the teeth and usually made of plastic. Such devices may protect against injury during sport or fighting or may serve a medical purpose.
What part of speech is mouthguard?
Mouthguard is a noun.
What is the plural of mouthguard?
The plural of mouthguard is mouthguards.

Words near mouthguard in the dictionary

  1. mouthfull
  2. mouthfuls
  3. mouthfuls of marbles
  4. mouthgasm
  5. mouthgasms
  6. mouthguard
  7. mouthguards
  8. mouthhook
  9. mouthhooks
  10. mouthie
  11. mouthier

Source and license

Adapted from Wiktionary: mouthguard (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “mouthguard.” Word.ws, https://word.ws/mouthguard. Based on Wiktionary, CC BY-SA 4.0.