Definitions for "Lineout"
The method of putting the ball back into play after it has gone out of bounds. The two sets of forwards line up opposite each other (although backs may join in, so long as the numbers are equal); a player from one side then calls a play and throws the ball between the two lines.
the setplay restarting play after the ball has been taken out or kicked to touch. Both sets of forwards will line up opposite each other with the side with throw choosing where to throw it. The throw must be directly down the middle of the two lines