1. A type of tool: A cleaver is a large, heavy knife with a broad blade, used for chopping meat, bones, and vegetables. It's often used in butchershops and kitchens.
2. A type of plant: Cleavers (also called goosegrass or stickyweed) is a common weed with prickly stems and leaves. They are known for their ability to cling to clothing and fur.
The meaning of "cleavers" will depend on the context of the sentence.