Football

3. a loose-fitting shirt, part of a sports team's uniform, that is typically made of a knitted synthetic fabric and features the player's name and number on the back
5. an event before a school sports event that is meant to get students and fans excited and to encourage the team to win.
6. a six-point score made by carrying or passing the ball into the end zone of the opposing side, or by recovering it there following a fumble or blocked kick.
7. the team with possession of the ball, whose primary objective is to advance it toward the opponent's end zone to score points through touchdowns or field goals.

1. the side that does not have possession of the ball and its primary goal is to prevent the opposing offense from scoring points and to win possession of the ball.
2. an official who watches a game or match closely to ensure that the rules are adhered to and (in some sports) to arbitrate on matters arising from the play.
4. a protective dental device, typically made of flexible plastic, that fits over teeth and gums to prevent injury from contact sports
8. a form of team game played in North America with an oval ball on a field marked out as a gridiron.