PK has multiple meanings depending on the context. Here are some possible definitions:

• Park: PK can be an abbreviation for "park".
• Peak: PK can also be an abbreviation for "peak".
• Peck: PK can be an abbreviation for "peck".
• Pike: PK can be an abbreviation for "pike".
• Personal Knowledge: In some contexts, PK can stand for "personal knowledge".
• Psychokinesis: PK can also stand for "psychokinesis".
• Pick-em: In sports betting, PK stands for "pick-em," which means that the teams are evenly matched and there is no point spread.

It is important to understand the context in which PK is being used to determine its meaning.