noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A mouthguard to protect the teeth and gums during physical activity. UK
2. 2
   (especially boxing) equipment that protects an athlete's mouth wordnet

Synonyms

All synonyms

mouthguardmouthpiecemouthpiece

Etymology

From gum + shield.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.