tackle vs American football game

tackle and American football game both are nouns.

Word	Noun	Adjective	Verb	Adverb
tackle	Yes	No	Yes	No
American football game	Yes	No	No	No

tackle (noun)	American football game (noun)
(American football) grasping an opposing player with the intention of stopping by throwing to the ground	a game played by two teams of 11 players on a rectangular field 100 yards long; teams try to get possession of the ball and advance it across the opponents goal line in a series of (running or passing) plays
(American football) a position on the line of scrimmage, typically opposite one of the offensive guards
gear consisting of ropes etc. supporting a ship's masts and sails
gear used in fishing
the person who plays offensive or defensive tackle on a football team

tackle (verb)	American football game (verb)
seize and throw down an opponent player, who usually carries the ball
put a harness
accept as a challenge