Difference between Gnaw At and Gnaw

GNAW AT vs GNAW: NOUN

To bite, chew on, or erode with the teeth.
To erode or diminish gradually as if by gnawing.
To afflict or worry persistently.
To bite or chew persistently.
To cause erosion or gradual diminishment.
To cause persistent worry or pain.
To use the teeth in biting; to bite with repeated effort, as in eating or removing with the teeth something hard, unwieldy, or unmanageable.
To produce by gnawing.

To bite, as something hard or tough, which is not readily separated or crushed; to bite off little by little, with effort; to wear or eat away by scraping or continuous biting with the teeth; to nibble at.
To bite in agony or rage.
To corrode; to fret away; to waste.
To trouble in a constant manner; to plague; to worry; to vex; -- usually used with at.

To bite off little by little; bite or scrape away with the front teeth; erode or eat into.
To bite or nibble at the hook, as fish.
To act by or as if by continual biting away of small fragments or portions.
To wear away as if by continued biting; consume; fret; waste.
To bite upon, as in close thought, vexation, rage, etc.

Nibble, Eroding, Eats, Corrode, Knaw, Chew, Ceres, Gnawing, Gnawed, Fret, Eat, Wear away, Eat at, Erode, Gnaw

Ache, Salivate, Squirm, Gobble, Masticate, Gnash, Munch, Devour, Chomp, Chew, Nibble, Wear away, Eat at, Gnaw at, Erode

Carpenter ant, Bookworm, Bite, Begnaw, Worm, Nibbling, Nibble, Eroding, Chew, Gnawing, Gnawed, Eat, Wear away, Eat at, Erode

Clench, Scrape, Eat, Ache, Salivate, Squirm, Masticate, Gnash, Munch, Devour, Chew, Nibble, Wear away, Eat at, Erode

The inequity of it began to gnaw at her and would continue to do so for the rest of her life.
In order for our words to give life, we need to let go of the words or phrase that gnaw at our loved ones.
Then they gnaw at the horse's side until the belly rips open and the horses entrails spill out into the enclosure.
They hurt, they gnaw at me, they are constantly reminders of a friendship gone wrong.
Yet there were other reasons for it that did not cease to gnaw at his heart, as flame consumes chaff.
Doubt began to gnaw at our spent a further year reviewing all judicial conscience.
They are lone-rangers who gnaw at anything that looks edible.
Brennan started to gnaw at the inside of his cheek.
The hideous hunger for opium began to gnaw at him.
But, even so, it begins to gnaw at me.