goal line noun 3goal-line adjective 1forms 1 noun3 •the boundary of the field that runs along its width at each end, and across the front of the goal. •part of a vertical plane separating an end zone from the field of play when the ball is touched or is in player possession. The plane extends beyond the sidelines. A team’s goal line is that which it is defending. •the red line that runs across the rink and the front of the goal. goal-line adjective[before a noun]1 •goal lineThe incident immediately revived the debate about goal-line technology, with a final decision on whether it is introduced expected to be taken in Zurich on 5 July. — 2012 formsgoal lines