Dictionary
gnaw
Pronunciation: (nô), [key]
—v., gnawed, gnawed or gnawn, gnaw•ing.
—
v.t.
1. to bite or chew on, esp. persistently.
2. to wear away or remove by persistent biting or nibbling.
3. to form or make by so doing:
to gnaw a hole through the wall.
4. to waste or wear away; corrode; erode.
5. to trouble or torment by constant annoyance, worry, etc.; vex; plague.
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v.i.
1. to bite or chew persistently:
The spaniel gnawed happily on a bone.
2. to cause corrosion:
The acid gnaws at the metal.
3. to cause an effect resembling corrosion:
Her mistake gnawed at her conscience. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.