This is the 962nd most frequent Czech word.
povolení
Permission.
Here, "povolení" is used in the sense of permission or authorization.
Pro vstup na výstavu potřebujete povolení.
You need permission to enter the exhibition.
In this sentence, "povolení" denotes an official permit or document of approval.
Stavba domu bez povolení je nelegální.
Building a house without a permit is illegal.
Here, "povolení" is used to describe the state of being loosened or adjusted for proper clearance.