dressup Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. 1 put on special clothes to appear particularly appealing and attractive; 2 make something appear superficially attractive; 3 dress in a costume Example Sentence The little girls like to play dressup. Spelled as one word. Synonyms fancy up; gussy up; costume Antonyms undress Hear It! Say It! Write It! dressup Switch to cursive Start Share with your friends: