illuminati
Concise Oxford English Dictionary © 2008 Oxford University Press:
illuminati /ɪˌl(j)uːmɪˈnɑːti/
▶plural noun people claiming to possess special enlightenment or knowledge.
– derivatives
illuminism noun,
illuminist noun.
illuminism noun,
illuminist noun.
– origin C16: pl. of Ital. illuminato or L. illuminatus ‘enlightened’, past part. of illuminare (see illuminate).
'illuminati' also found in these Oxford entries:

