A thrown pitch that either the batter swung and missed or an umpired called strike.
Strike Out Looking
K is a strike out.
Assuming you mean in baseball: The number of pitches in the strike zone versus the number of pitches outside the strike zone.
It could mean a strike out by a called third strike, but that is usually signified by a reverse K.
First Pitch Strike percentage - or the percent of times their first pitch to a batter results in a strike.
You can only have 3 strike outs in baseball.
Strike one! Strike two! Strike three! You're out!!
It's when the batter gets 3 strikes and gets an out for the team.
Umpire
There is nothing called a strike out in hockey. Batters strike out in baseball.
Your strike zone in baseball is from your chest to your knees and the width of home plate.
It went on strike in 1981 and 1994