mulching Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. covering the ground with a layer of material to conserve moisture, suppress weeds, and improve soil fertility Example Sentence Gardening is easier with mulching. Synonyms covering; layering; spreading Antonyms exposing; uncovering Hear It! Say It! Write It! mulching Switch to cursive Start Share with your friends: