He gnawed on it for hours.

Meaning: This sentence describes the dog spending a long time chewing on the bone, using his teeth to break it down and eat it.

Choice of Words: Gnawed means to chew on something with your teeth, especially if it's hard or tough. Hours are long periods of time, each lasting sixty minutes. When you say "gnawed on it for hours", it means the dog spent a long time chewing on the bone, using his teeth to break it down and eat it.

Alternative Expressions

Related Expressions

• Dog gnawed bone with delight.
• Anxiety gnawed at mind like a rat.
• Hunger gnawed at his stomach.
• Hunger gnawed at his insides.
• Fear gnawed at his insides like a hungry beast.
• Hunger gnawed at cat's stomach.
• Guilt gnawed conscience.
• Fear gnawed at her mind.
• She would spend hours in her room, lost in her imagination.
• Her cat sleeps twenty hours a day.