Gaming:
* "PK" can stand for "Player Kill" in online games, referring to killing another player in a game. This is often used in MMOs (Massively Multiplayer Online games) and can be a controversial topic.
Other:
* "PK" can be an abbreviation for "Park".
* "Pk" can be a shortened form of "pack".
* "PK" can be a surname.
To understand the meaning of "pk" in a specific context, you need to look at the surrounding text and consider the context of the situation.