kestudent
kestudent is a term that appears to be a portmanteau of "Ke" and "student." "Ke" itself is not a widely recognized or standardized prefix or abbreviation in common English usage. Therefore, the meaning of "kestudent" is largely dependent on the specific context in which it is used.
It is possible that "Ke" is a personal initial, a nickname, or an abbreviation specific to a