Tackle

1. To supply with tackle.
2. To fasten or attach, as with a tackle; to harness; as, to tackle a horse into a coach or wagon.
3. To seize; to lay hold of; to grapple; as, a wrestler tackles his antagonist; a dog tackles the game.
4. (Football) To cause the ball carrier to fall to the ground, thus ending the forward motion of the ball and the play.
5. To begin to deal with; as, to tackle the problem.