Gnaw/nɔː/ Definition 1 of 3Pro Tip 1/3Animals and Gnawing Most commonly, 'gnaw' is used when animals chew on objects. The rabbit was gnawing on a carrot. Pro Tip 2/3Continuous Action 'Gnaw' emphasizes a slow, continuous chewing action, often without eating. She gnawed contemplatively on her pencil. Pro Tip 3/3Physical Texture Use 'gnaw' when describing chewing hard, tough, or resilient materials. He gnawed on the tough bread crust.