This is the 794th most frequent Croatian word.
bez
"Bez" means "without" in English.
In this sentence, 'bez' expresses the lack or absence of 'glazbe' (music) in the context of life.
Ne mogu zamisliti život bez glazbe.
I can't imagine life without music.
Here, 'bez' is used as a preposition meaning 'without', indicating the absence of 'kišobrana' (umbrella) during the walk.
Idemo u šetnju bez kišobrana.
We are going for a walk without an umbrella.
Here, 'bez' is applied idiomatically to indicate being in a state without 'riječi' (words), implying strong emotional impact.