The definition of an illuminati is a person or a group who says to have special knowledge or spiritual enlightenment, especially about religion or philosophy.(noun)
An example of an illuminati is someone who says they know the secrets of a specific religion.
See illuminati in Webster's New World College Dictionary
Origin: It (or ModL) < L, pl. of illuminatus: see illuminate
See illuminati in American Heritage Dictionary 4
Origin: Latin illūminātī
Origin: , from
Origin: pl. of illūminātus, past participle of illūmināre, to light up; see illuminate.
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