mulch Get Printable Handwriting (mulch) 1 syllables Rhymes Learn It! Spelling Test Definition noun. a protective covering of rotting vegetable matter spread to reduce evaporation and soil erosion;verb. cover with above Example Sentence We need mulch for the garden. Synonyms cover; protective covering; protective cover Antonyms removal Rhymes One Syllable Rhymes (3) gulch mulch ulch Share with your friends: