lineout
noun [ C ] uk/ˈlaɪn.aʊt/ us/ˈlaɪn.aʊt/
（英式橄榄球的）球出界，界外球
a way of continuing a game of rugby after the ball has gone off the field, in which the attacking players from both teams form two parallel lines at the edge of the field and jump to catch the ball when it is thrown between the two lines