Meaning of the word "aide de camp" in English

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

aide de camp

US /ˌeɪd də ˈkæmp/
UK /ˌeɪd də ˈkæmp/

Noun

a military officer acting as a confidential assistant to a senior officer

Example:
The general's aide-de-camp delivered the urgent message.
He served as an aide-de-camp to the President.