confidential -- (entrusted with private information and the confidence of another; "a confidential secretary")
confidential, secret -- ((of information) given in confidence or in secret; "this arrangement must be kept confidential"; "their secret communications")
confidential -- (denoting confidence or intimacy; "a confidential approach"; "in confidential tone of voice")
confidential -- (the level of official classification for documents next above restricted and below secret; available only to persons authorized to see documents so classified)
(Sound)
