Source : Webster's Revised Unabridged Dictionary (1913)

Enlightenment \En*light"en*ment\, n.
   = {Aufkl["A]rung}.

Enlightenment \En*light"en*ment\, n.
   Act of enlightening, or the state of being enlightened or
   instructed.

Source : WordNet®

enlightenment
     n 1: education that results in understanding and the spread of
          knowledge [ant: {unenlightenment}]
     2: (Hinduism and Buddhism) the beatitude that transcends the
        cycle of reincarnation; characterized by the extinction of
        desire and suffering and individual consciousness [syn: {Nirvana}]
     3: a movement in the 18th century that advocated the use of
        reason in the reappraisal of accepted ideas and social
        institutions [syn: {Age of Reason}]