dresscode

noun
UK /ˈdrɛs kəʊd/
US /ˈdrɛs koʊd/

A dress code is a set of rules about what clothes you are allowed to wear.

The school dress code says we must wear a white shirt and dark trousers.


OTHER MEANINGS

2. A formal set of clothing requirements for a special event or venue.

The wedding invitation listed a black-tie dress code.

3. The customary style of clothing worn in a particular workplace or profession.

The office dress code is business casual.

4. A written rule in a school or company describing acceptable and unacceptable clothing.

The new dress code bans hats inside the building.