دور

In a sentence

• او در مسابقه دو، چند دور زد.

  He ran several laps in the running competition.

  Here, the word "دور" (lap/round) is used to denote each complete round or lap in a physical activity, like running.

• خانه او بسیار دور است.

  His house is very far.

  In this context, "دور" (far) is used to describe a great distance.

• لطفاً از اینجا دور شو.

  Please move away from here.

  Here, "دور" (away) conveys the idea of moving to a position farther from a point where one currently is.