Wicket also refers to the event of a batsman getting out. The batsman is said to have lost his wicket. If dismissed by a bowler, the bowler is said to have taken his wicket. The number of wickets taken is the primary measure of a bowler's ability.
For a batsman to be dismissed by being bowled, run out, stumped or hit wicket, his wicket needs to be put down. What this means is defined by Law 28 of the Laws of cricket. The wicket is put down if a bail is completely removed from the top of the stumps, or a stump is struck out of the ground by the ball, the striker's bat, the striker's person (or by any part of his clothing or equipment becoming detached from his person), a fielder (with his hand or arm, and provided that the ball is held in the hand or hands so used, or in the hand of the arm so used). A 2010 amendment to the Laws clarified the rare circumstance where a bat breaks during the course of a shot and the detached debris breaks the wicket; the wicket has been put down in this circumstance. The wicket is also put down if a fielder pulls a stump out of the ground in the same manner.
If one bail is off, removing the remaining bail or striking or pulling any of the three stumps out of the ground is sufficient to put the wicket down. A fielder may remake the wicket, if necessary, in order to put it down to have an opportunity of running out a batsman.
If however both bails are off, a fielder must remove one of the three stumps out of the ground with the ball, or pull it out of the ground with a hand or arm, provided that the ball is held in the hand or hands so used, or in the hand of the arm so used.
If the umpires have agreed to dispense with bails, because, for example, it is too windy for the bails to remain on the stumps, the decision as to whether the wicket has been put down is one for the umpire concerned to decide. After a decision to play without bails, the wicket has been put down if the umpire concerned is satisfied that the wicket has been struck by the ball, by the striker's bat, person, or items of his clothing or equipment separated from his person as described above, or by a fielder with the hand holding the ball or with the arm of the hand holding the ball.