Source : Webster's Revised Unabridged Dictionary (1913)

Intimate \In"ti*mate\, a. [Formerly intime, L. intimus, a
   superl. corresponding to the compar. interior: cf. F. intime.
   The form intimate is due to confusion with intimate, v. t.
   See {Interior}.]
   1. Innermost; inward; internal; deep-seated; hearty. ``I knew
      from intimate impulse.'' --Milton.

   2. Near; close; direct; thorough; complete.

            He was honored with an intimate and immediate
            admission.                            --South.

   3. Close in friendship or acquaintance; familiar;
      confidential; as, an intimate friend.

   Syn: Familiar; near; friendly; confidential.

Intimate \In"ti*mate\, n.
   An intimate friend or associate; a confidant. --Gov. of the
   Tongue.

Intimate \In"ti*mate\, v. t. [imp. & p. p. {Intimated}; p. pr. &
   vb. n. {Intimating}.] [L. intimatus, p. p. of intimare to
   put, bring, drive, or press into, to announce, make known,
   from intimus the inmost. See {Intimate}, a.]
   1. To announce; to declare; to publish; to communicate; to
      make known. [Obs.]

            He, incontinent, did proclaim and intimate open war.
                                                  --E. Hall.

            So both conspiring 'gan to intimate Each other's
            grief.                                --Spenser.

   2. To suggest obscurely or indirectly; to refer to remotely;
      to give slight notice of; to hint; as, he intimated his
      intention of resigning his office.

            The names of simple ideas and substances, with the
            abstract ideas in the mind, intimate some real
            existence, from which was derived their original
            pattern.                              --Locke.

Source : WordNet®

intimate
     adj 1: marked by close aquaintance, association, or familiarity;
            "intimate friend"; "intimate relations between 
            economics, politics, and legal principles" - V.L.
            Parrington
     2: having or fostering a warm or friendly atmosphere;
        especially through smallness and informality; "had a cozy
        chat"; "a relaxed informal manner"; "an intimate cocktail
        lounge"; "the small room was cozy and intimate" [syn: {cozy},
         {informal}]
     3: having mutual interests or affections; of established
        friendship; "on familiar terms"; "pretending she is on an
        intimate footing with those she slanders" [syn: {familiar}]
     4: involved in a sexual relationship; "the intimate (or sexual)
        relations between husband and wife"; "she had been
        intimate with many men" [syn: {sexual}]
     5: innermost or essential; "the inner logic of Cubism"; "the
        internal contradictions of the theory"; "the intimate
        structure of matter" [syn: {inner}, {internal}]
     6: thoroughly acquainted with through study or experience;
        "this girl, so intimate with nature"-W.H.Hudson;
        "knowledgeaIble about the technique of painting"- Herbert
        Read [syn: {intimate with}, {knowledgeable}, {knowledgeable
        about(p)}]

intimate
     n : someone to whom private matters are confided [syn: {confidant}]
     v 1: give to understand; "I insinuated that I did not like his
          wife" [syn: {adumbrate}, {insinuate}]
     2: imply as a possibility; "The evidence suggests a need for
        more clarification" [syn: {suggest}]