This is the 509th most frequent Croatian word.
večeras
"Večeras" means "tonight" in English.
In this sentence, 'večeras' refers to the general time period of 'tonight', expressing an activity planned for the evening.
Večeras idem u kino.
Tonight I am going to the cinema.
Here, 'večeras' is used to describe the temporal setting for the observation of the beautiful sky, referring to 'this evening'.
Večeras je zvjezdano nebo jako lijepo.
Tonight, the starry sky is very beautiful.
In this case, 'večeras' specifies the time frame for the potential plans, equivalent to 'tonight' in English.