Definition of gnaw verb from the Oxford Advanced American Dictionary

     

    gnaw

     verb
    verb
    NAmE////
     
    [transitive, intransitive]Verb Forms present simple I / you / we / they gnaw
     
    he / she / it gnaws
     
    past simple gnawed
     
    -ing form gnawing
     
     
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  1. 1to keep biting something or chewing it hard, so that it gradually disappears gnaw something The dog was gnawing a bone. gnaw through something Rats had gnawed through the cable gnaw at/on something She gnawed at her fingernails. gnaw away at/on something
  2. 2(figurative) Self-doubt began to gnaw away at her confidence.
  3. Phrasal Verbsgnaw at somebody
See the Oxford Advanced Learner's Dictionary entry: gnaw

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