This is the 5020th most frequent Portuguese word.
legislativas
"Legislativas" refers to parliamentary elections.
Here, 'legislativas' is used as an adjective that describes the type of elections, specifically those concerning the legislative branch of government.
As eleições legislativas ocorrerão no próximo mês.
The legislative elections will take place next month.
In this sentence, 'legislativo' (derived from 'legislativas') functions as an adjective describing the debate regarding legislative matters.
O debate legislativo foi transmitido pela televisão.
The legislative debate was broadcasted on television.
Here, 'legislativas' is used as a noun referring to the event of legislative elections, understood in context.