<p><strong>Noun</strong></p><ul><li>the melted or rendered fat of animals, especially when in a soft state: She always saves the bacon grease to fry her eggs and potatoes in.</li><li>fatty or oily matter in general; lubricant: The auto mechanic’s overalls were stained with engine grease and motor oil.</li><li>Informal. a bribe.</li><li>Also called grease wool: shorn wool before being cleaned of the oily matter.</li><li>Also called grease-heel: inflammation of a horse's skin in the fetlock region, accompanied by an oily secretion.</li></ul><p><strong>Verb</strong></p><ul><li>to lubricate by putting a fatty or oily substance on: I think I need to grease my bike chain a little—it’s not moving smoothly.</li><li>to smear or cover with a fatty or oily substance: Grease the baking sheet before spooning the dough onto it.</li><li>Informal. to bribe.</li></ul>