This is the 11745th most frequent Portuguese word.
portar
"Portar" means "to carry," "to bear," or "to behave."
Here 'portar-se' is used reflexively to mean 'to behave oneself', showcasing the pronominal form of the verb.
Ele sempre procura portar-se bem em público.
He always tries to behave well in public.
'Portar' refers to carrying or bearing objects, in this case, documents.
Deve-se portar documentos necessários para entrada no evento.
One must carry the necessary documents for admission to the event.
The verb 'portar' used metaphorically to signify 'to be equipped with' or 'to have' capabilities or features.