'confidentiality' definitions:

Definition of 'confidentiality'

From: WordNet
noun
The state of being secret; "you must respect the confidentiality of your client's communications"
noun
Discretion in keeping secret information

Definition of 'confidentiality'

From: GCIDE
  • confidentiality \confidentiality\ n. the state or attribute of being secret; privacy; as, you must respect the confidentiality of your client's communications. [WordNet 1.5 +PJC]
  • 2. discretion in keeping secret information. [WordNet 1.5]