Well, they are the same thing. Although, it is actually supposed to be written like: 'til But people have been writing it as "till" for so long that it's become accepted and even put in the dictionary. But "'til" is just a shortened version of "until". There are many definitions of "till" as a verb/noun/conjunction/preposition/etc... here: http://dictionary.reference.com/browse/till

just check it if u can u/stand it. until u come till i wait for u

no difference between "till" and "untill"---> same-same =)