What does conichua mean?

"Conichua" is not a word in any recognized language. It's likely a misspelling or a made-up word.

Perhaps you meant one of the following:

* "Ciao": An Italian word for goodbye.

* "Konnichiwa": Japanese for "hello" or "good day."

* "Hola": Spanish for "hello."

If you can provide more context about where you encountered this word, I might be able to help you figure out what it was supposed to be.