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Pronunciation varies by accent · noun
(dentistry) A guard worn on the teeth to prevent damage from bruxism during sleep..
Use nightguard when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nightguard means (dentistry) A guard worn on the teeth to prevent damage from bruxism during sleep..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use nightguard where its definition matches the intended context.
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