This is the 3134th most frequent Portuguese word.
centrais
"Centrais" in English means "central" or "main," typically referring to something located at the center or of primary importance.
Here, the term 'centrais' refers to facilities or installations that serve as primary centers for providing services—in this case, electricity.
As centrais elétricas fornecem energia para toda a cidade.
The power plants supply energy to the entire city.
In this example, 'centrais' is an adjective describing something that is of main importance or fundamental—in particular, the decisions.
As decisões centrais afetarão a política da empresa.
The central decisions will affect the company's policy.
Here, 'centrais' is again used adjectivally to describe something essential or primary—in this case, important information.