This is the 801st most frequent Croatian word.
opće
General.
Here, 'opće' indicates something general or widely accepted, paired with 'poznata' to describe commonly known information.
Je li to opće poznata činjenica?
Is that a commonly known fact?
In this sentence, 'opće' means 'common' and emphasizes the collective or general nature of the good.
Opće dobro mora biti cilj svake zajednice.
The common good must be the goal of every community.
In this usage, 'opće' functions as an intensifier, expressing a stronger degree of negation or lack of knowledge.