What does charlie Oscar mean?

"Charlie Oscar" is a phonetic alphabet code used in communication where clarity is paramount, such as aviation, military, and emergency services.

* Charlie represents the letter C.

* Oscar represents the letter O.

Therefore, "Charlie Oscar" simply means "CO".

It's important to note that in certain contexts, "Charlie Oscar" might be used as a slang term or abbreviation, but in formal communication, it always refers to the letters "CO".