arcanum
1. [ noun ] information known only to a special group
Synonyms: secret
Examples:

"the secret of Cajun cooking"

Related terms: information password cabala esoterica
Similar spelling:   areca_nut
  arcane
  Arcand
  Aragon
  arraign
  archean
  arachnid
  arson
  Arrasmith
  Arkin
  Arkansan
  argument
  argon
  archangel
  arachnoid
  Arachnida