What is yk mean?

"YK" can have various meanings depending on the context in which it is used. In internet slang, "YK" is an abbreviation for "you know." It is often used in informal communication to indicate that the recipient should already be aware of the information being shared.

In a more specific context, "YK" is also the symbol for the element Yttrium (Y) and the symbol for the international airport in Yekaterinburg, Russia.

Without further information provided, it is difficult to determine the specific meaning of "yk mean."