Main Entry: dress up

Function: verb

Date: 1635

transitive verb

1 : to make more attractive, glamorous, or fancy <dress up a plain dessert with a rich chocolate sauce>
2 a : to attire in best or formal clothes b : to attire in clothes suited to a particular role
3 : to present in the most attractive or impressive light <a fiasco dressed up as a triumph>intransitive verb : to get dressed up