✔ 最佳答案
In fact, P.K. has taken many different meaning.
P.K. in Football mean Penalty Kick, which is a free kick kicking from 12 yard from the goal. It is a penalty to punish the wrong doing side (for example hand ball). This is very usual term used in Football.
In video game, there is also a term P.K. which means Player Killer/Killing whom only targeting player instead of completing the original mission given, this type of person are usually being strongly penalize by the game master (usually take the short from of GM).
P.K. is also used in Battle/Matches between two person/team and is refering the battle or matches as an action. In video game when 2 player try to challenge each other, it is also called PK. It is very usual to see this in Taiwan, not only in game, in real life it also has the meaning of battle or taking matches and even to compare two object.
However, in Hong Kong, P.K. in Cantonese has the sound of [Puk Kai] which has been reconized as a very rude word (Some has also reconized it as swearword), which has the meaning to go to die.
And according to wikiepedia, in Singapore P.K. has a meaning of Company went into liquadation and has to be closed. PK also take the terms of Psychokinesis, Pharmacokinetics, Russian Guns Name , Aeroplane serial of Pakistan, etc.