This is the 49th most frequent Czech word.
bez
The Czech word "bez" means "without."
preposition indicating the lack or absence of something
Jdeme na procházku bez deštníku.
We are going for a walk without an umbrella.
preposition used to indicate action done without a required condition or approval
Děti nemohou jít ven bez dovolení rodičů.
The children cannot go outside without their parents' permission.
preposition signifying that a task is performed in the absence of a necessary factor