What is c++language

Answer 1

https://www.sololearn.com/Course/CPlusPlus/?ref=app

Answer 2

C++ is a programming language. (as your question doesn't ask much more i'm having a laugh)

Answer 3

To add on to @Lucien’s brief answer, it is a great general purpose language. Sort of hard to learn, but well worth the effort.
https://www.sololearn.com/Discuss/280672/?ref=app