This is the 55th most frequent Bulgarian word.
днес
The Bulgarian word "днес" means "today" in English.
The word "днес" is used as a temporal adverb to indicate the current day.
Днес е много хубав ден.
Today is a very nice day.
Here, "днес" refers specifically to today's afternoon in the context of the question.
Какво ще правиш днес следобед?
What will you do this afternoon?
In this sentence, "днес" limits the subject 'the weather' to today's conditions specifically.