* The Portuguese language: This is the Romance language spoken in Portugal and its former colonies, such as Brazil, Angola, and Mozambique.
* The people of Portugal: You might refer to someone as "Portuguese" if they are from Portugal.
* Something related to Portugal: For example, you might talk about "Portuguese cuisine" or "Portuguese architecture."
Do you have a specific context in mind for "Portuguese"? If you tell me what you're trying to say, I can give you a more precise answer.