What is the difference between AirPrint, Bonjour and Rendezvous?

While know what AirPrint does, I am confused about what it is. It claims to be a bunch of technology standards used together such as mDNS, IPP and multicasting. However, the term Bonjour is also thrown around as well, which also appears to be based on the same technologies. What makes it even more confusing is that Bonjour is just a rebrand of Rendezvous. Is AirPrint a rebrand of Bonjour, the same way Bonjour is a rebrand of Rendezvous, or is AirPrint distinct from Bonjour?