mouse's Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails Example Sentence The mouse's home was in the wall. Synonyms rodent; vermin; rat-like creature Antonyms elephant Hear It! Say It! Write It! mouse's Switch to cursive Start Share with your friends: