(American football, Canadian football) A six-point score occurring when the ball enters possession of a team's player in the opponent's end zone.

(rugby) A defensive action of grounding the ball in the team's own in-goal to stop the play.

(rugby) A try (scoring play of grounding the ball in the opposing team's in-goal).

(aviation) The moment when an aircraft or spacecraft makes first or final contact with the ground during a landing.

The moment of contact of a tornado with the ground.