This is the 847th most frequent Portuguese word.
eleitoral
Related to elections.
Here, 'eleitoral' is an adjective modifying 'período', indicating that the period is related to elections.
O período eleitoral é um momento importante para a democracia.
The electoral period is an important moment for democracy.
In this sentence, 'eleitoral' functions as an adjective describing 'propaganda', tying it to the context of elections.
A propaganda eleitoral deve respeitar as leis.
Electoral propaganda must comply with the laws.
Here, 'eleitoral' describes 'colégio', associating it with its election-related function.