This is the 1752nd most frequent Portuguese word.
estabelecidas
"Established."
In this sentence, 'estabelecidas' is used as a participle to describe the rules that are defined or formalized.
As regras estabelecidas no contrato devem ser seguidas.
The rules established in the contract must be followed.
Here, 'estabelecidas' refers to goals that were set or determined by the company.
As metas estabelecidas pela empresa foram alcançadas este ano.
The goals established by the company were achieved this year.
In this context, 'estabelecidas' is used to signify routines that were predefined or arranged beforehand.