This is the 9074th most frequent Portuguese word.
baseia
"Baseia" means "is based (on)" or "relies (on)."
Here, 'baseia-se' means 'is based on', describing the foundation of the author's argument.
O argumento do autor baseia-se em evidências históricas.
The author's argument is based on historical evidence.
In this example, 'baseia' means 'bases', referring to the manner in which she develops her decisions.
Ela baseia suas decisões na razão e na lógica.
She bases her decisions on reason and logic.
Here, 'baseia-se' implies that the document's principles or guidelines are grounded in established international standards.