Meaning of the word containing in English

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

containing

US /kənˈteɪnɪŋ/
UK /kənˈteɪnɪŋ/

Verb

present participle of contain

Example:
The box is containing old letters.
The report is containing sensitive information.