Is the word porttuguê s (Portuguese) an abbreviation?

But when we say Português Europeu and Português Brazileiro, we will abbreviate them to PE and PB respectively.

At least two of my teachers have used this expression, both of whom are Portuguese, so I think this expression should be universal and acceptable to everyone.

You can use PB to represent Português Brazileiro, which is Português(Brasil).

I think this is the most appropriate.