grown-up Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. an adult person who is fully developed. Example Sentence Today she looks all grown-up. Spelled with a hyphen. More Example Sentences She wants to be a grown-up someday. Synonyms adult; mature; full-grown Antonyms child; kid; youth Hear It! Say It! Write It! grown-up Switch to cursive Start Share with your friends:
