dress up

to wear formal clothes.

• I have to dress up.
• Tom is all dressed up.
• Please come dressed up.
• You don't have to dress up.
• She was dressed up in black.
• She dressed up for the party.
• Tom dressed up for the party.
• What're you all dressed up for?
• Why is Tom so dressed up today?
• What are you all dressed up for?
• I got all dressed up for Tom's party.
• She dressed up and left for the party.
• You're all dressed up. Where are you going?
• Tom likes to dress up on special occasions.
• Mary likes to dress up on special occasions.
• Americans, in general, don't like to dress up.
• If you had told me earlier, I would have dressed up.
• You don't need to get all dressed up. It's an informal event.
• Going somewhere tonight? Look at you - all dressed up like that.
• Our teacher was a beautiful lady, but was not the type of person who dressed up.

to wear clothes that make you look like someone else.

• He dressed up as a woman.
• Tom dressed up as Santa Claus.
• She likes to dress up as a nurse.
• He likes to dress up as a police officer.
• She likes to dress up as a police officer.
• I dressed up as a girl for the school festival.
• I was dressed up as a girl at the school festival.
• Many children dressed up for the Shichigosan Festival.