touch ‧ down /ˈtʌtʃdaʊn/ BrE AmE noun [countable]
1 . the moment at which a plane or spacecraft lands
2 . an act of putting the ball down on the ground behind the opposing team’s ↑ goal line in ↑ rugby
3 . an act of moving the ball across the opposing team’s ↑ goal line in American football