Pwn
From Omnictionary
Pwn (/poʊn/, /puːn/, /pəʔˈoʊn/, /pɔːn/, /piˈoʊn/, /pwəʔˈn̩/) is a leetspeak slang term, derived from the word "own", that implies domination or humiliation of a rival, used primarily in the Internet gaming culture to taunt an opponent who has just been soundly defeated. Past tense is sometimes spelled pwnt (pronounced with a t sound), pwned, pwnd, pwn3d, or powned (with the standard d sound). Examples include "pwnage" or "you just got pwned".
Etymology
The word "pwn" may have arisen and spread as a common typo of the word "own," since the 'p' and 'o' keys are adjacent on a standard English keyboard. Also some people believe the word "pwn" has arisen from the hybrid of "professionally" and "own" so by that theory you would be "pwned" or professionally owned. -Side Note- My friend has a theory that states the "pwn" comes from "power owned." Can anyone confirm or deny?
Pronunciation
Given the recent development of the word and its primary use in written form only, there is no single accepted pronunciation of pwn. However, "own", "pawn", "poon" (compare cwm) and "pone" are frequently used, and "pwen" is also considered an acceptable pronunciation although "pone" is the most common pronunciation.[6] According to the staff at the popular company Pure Pwnage (a company that creates popular online videos like FPS Doug), the word "pwnage" or "pwn" is pronounced like the word's predecessor "own." The reason for this is because it is simply a typo and really has no origin other than in online text.

