'Confidant' definitions:

Definition of 'confidant'

From: WordNet
noun
Someone to whom private matters are confided [syn: confidant, intimate]

Definition of 'Confidant'

From: GCIDE
  • Confidant \Con`fi*dant"\; 277), n. masc., Confidante \Con`fi*dante"\ (?; 277), n. fem.[F. confident, confidente, formerly also spelt confidant, confidante. See Confide, and cf. Confident.] One to whom secrets, especially those relating to affairs of love, are confided or intrusted; a confidential or bosom friend. [1913 Webster]
  • You love me for no other end Than to become my confidant and friend; As such I keep no secret from your sight. --Dryden. [1913 Webster]

Synonyms of 'confidant'

From: Moby Thesaurus