polite Japanese as used by young part-time employees in restaurants, etc.
redundant keigo (i.e. improper use of the -rareru honorific form together with an honorific verb such as ossharu)
absolute respectful speech; absolute honorifics
relative respectful speech; relative honorifics
highest honorifics; honorific language mainly reserved for speaking of or to a member of the Imperial family
honorific expressions learned from company training manuals