monarchs Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. one who rules over a people with a sole and supreme and usually hereditary authority From the Greek root mono meaning One Example Sentence The other monarchs ignored the kingling. Synonyms ruler; king; queen; czar; sovereign Antonyms peasant Hear It! Say It! Write It! monarchs Switch to cursive Start Share with your friends: