Meaning of the word "be dressed in" in English

What does "be dressed in" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

be dressed in

US /bi drɛst ɪn/
UK /bi drɛst ɪn/

Idiom

to wear particular clothes

Example:
She was dressed in a beautiful red gown.
The children were all dressed in their Halloween costumes.