This is the 296th most frequent Persian word.
دور
"دور" in English means "far" or "distance."
Here, the word "دور" (lap/round) is used to denote each complete round or lap in a physical activity, like running.
او در مسابقه دو، چند دور زد.
He ran several laps in the running competition.
In this context, "دور" (far) is used to describe a great distance.
خانه او بسیار دور است.
His house is very far.
Here, "دور" (away) conveys the idea of moving to a position farther from a point where one currently is.