Meaning of the word "business attire" in English

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

business attire

US /ˈbɪz.nəs əˈtaɪər/
UK /ˈbɪz.nəs əˈtaɪər/
"business attire" picture

Noun

the formal clothing that people wear in a professional work environment

Example:
The invitation states that the dress code for the conference is business attire.
He felt underdressed because he wasn't wearing business attire.