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Verb: gnaw (gnawed,gnawn)  no
  1. Bite or chew on with the teeth
    "gnaw an old cracker"
  2. Become ground down or deteriorate
    - erode, gnaw at, eat at, wear away
  3. Cause lingering anxiety, torment, etc.

Sounds like: gloom, glgnaw

Derived forms: gnawed, gnawing, gnawn, gnaws

Type of: bite, chew, crumble, decay, dilapidate, jaw [informal], manducate, masticate, seize with teeth

Encyclopedia: Gnaw