boundary

noun
C1+
1
C1+
a real or imagined line that marks the limits or edges of something and separates it from other things or places; a dividing line
مرز, حد, حد و مرز, خط تقسیم, مرزبندی, خط مرزی
2
a hit of the ball that crosses the boundary of the playing area and scores extra points
خط خارج زمین, خط بیرونی
He hit 13 boundaries from 183 balls.