This is the 1386th most frequent Portuguese word.
presidencial
Pertaining to a president or presidency.
In this sentence, 'presidencial' describes a noun ('palácio') as related to the presidency, such as the official residence of a president or the symbolizes thereof.
O palácio presidencial é um símbolo do poder político no país.
The presidential palace is a symbol of political power in the country.
Here, 'presidencial' modifies 'campanha', indicating that the campaign pertains to the presidency (specifically an election for this governmental role).
A campanha presidencial deste ano foi bastante disputada.
This year's presidential campaign was quite competitive.
In this example, 'presidencial' qualifies 'debate', signifying its association with the presidency, typically referring to a discussion involving presidential candidates.