Definition of world to come:
(interjection) :
greeting given upon someone's arrival. (literally coming from a greating to wish hope that the spokee has had a well/great coming/journey
(v) :
affirm or
greet the
arrival of someone, especially by saying "Welcome!"; to
accept something willingly or gladly
"we welcome suggestions for improvement."
(n) :
the act of
greeting someone's
arrival, especially by saying "Welcome!"; reception; the
utterance of such a greeting