This is the 74th most frequent Persian word.
دارند
"دارند" means "they have."
In this sentence, "دارند" is used to indicate possession, meaning "have" in English.
آنها دو گربه دارند.
They have two cats.
Here, "دارند" is used as an auxiliary verb to indicate the continuity of the action, equivalent to 'are -ing' in English.
آنها دارند صحبت میکنند.
They are talking.
In this case, "دارند" emphasizes the progression of the action, conveying the immediacy and continuity of the verb "to go".