This is the 6369th most frequent Portuguese word.
deodoro
"Deodoro" does not have a definition as a common word in Portuguese; it is typically a proper noun, such as the name "Deodoro da Fonseca," Brazil's first president.
In this sentence, 'Deodoro' functions as a proper noun, specifically a place name.
Eu moro na cidade de Deodoro.
I live in the city of Deodoro.
Here, 'deodoro' is an adjective derived from a proper noun, metaphorically used to describe 'decisive' or 'significant' action.
O ato deodoro dele foi um marco na história.
His decisive act was a landmark in history.
In this case, 'Deodoro' is part of the full name of an important historical figure, acting as a proper noun.