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English definition of “gnaw”

gnaw

verb [I + prep, T] uk   /nɔː/ us    /nɑː/

gnaw verb [I + prep, T] (BITE)

to bite or chew something repeatedly, usually making a hole in it or gradually destroying it: Babies like to gnaw hard objects when they're teething. A dog lay under the table, gnawing on a bone.

gnaw verb [I + prep, T] (FEEL WORRIED)

to make you feel worried or uncomfortable: I've been gnawed by guilt about not replying to her letter yet. The feeling that I've forgotten something has been gnawing at me all day.
Phrasal verbs
(Definition of gnaw from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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