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- (transitive) To grind (one's teeth) in pain or in anger.
- gnashing your teeth
- (transitive) To grind between the teeth.
- to gnash the air in fury
- The dog was gnashing a carpet
- (figuratively) To clash together violently.
- (Tyneside) To run away.
to grind one's teeth in pain or in anger
gnash (plural gnashes)
- A sudden snapping of the teeth.