Chew/tʃuː/ Definition 1 of 5Pro Tip 1/2Physical action Use 'chew' for the action that involves teeth working on food. Chew the carrots well to make them easier to digest. Pro Tip 2/2Eating etiquette 'Chew' involves manners; it's polite to chew with your mouth closed. Please chew quietly, it's not nice to make noise while eating.