Is dress up one word or two?

adjective Describing an occasion that requires one to dress in formal or fanciful attire. In this usage, the phrase is typically hyphenated. Tonight's dinner is a dress-up event, so be sure to wear a suit and tie.

All this is further explained here. Likewise, what does playing dress up mean?

Dress-up is a children's game where a person wears costumes or articles of clothing for role-playing. Beginning from the mid-1990s, dress-up has become defined as a genre of video games primarily focused on customizing the user avatar's appearance.

Also, what does dressing up and down mean? Dressing up means formal. To dress really nice in a tux or dress. Dressing down means casual. Jeans and a shirt. Still wear nice clothes just nothing extravagant.

Also asked, what is it called when you dress up?

???, kosupure), a portmanteau of the words costume play, is a performance art in which participants called cosplayers wear costumes and fashion accessories to represent a specific character. The term "cosplay" was coined in Japan in 1984.

What do you mean by dress?

A dress is a piece of clothing for a woman or girl that covers the body and part or all of the legs. If someone dresses in a particular way, they wear clothes of a particular style or colour.