tête-à-tête

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adverb & adjective Without the intrusion of a third person; in intimate privacy.
• noun A private conversation between two persons.
• noun A sofa for two, especially an S-shaped one allowing the occupants to face each other.

from The Century Dictionary.

• Private; confidential; with none present but the persons concerned: as, a tête-à-tête conversation.
• noun A private interview; a friendly or close conversation.
• noun A short sofa, on which only two persons can comfortably sit.
• Face to face; in private; in close confabulation.

from the GNU version of the Collaborative International Dictionary of English.

• noun Private conversation; familiar interview or conference of two persons.
• noun A short sofa intended to accomodate two persons.
• adverb Face to face; privately or confidentially; familiarly.
• adjective Private; confidential; familiar.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A face-to-face meeting, or private conversation between two people, usually in an intimate setting; a head-to-head.
• noun A bench or sofa that allows two people to talk face-to-face.
• adverb In private, between two people; head-to-head.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adverb without the intrusion of a third person; in intimate privacy
• adjective involving two persons; intimately private
• noun a private conversation between two people
• noun small sofa that seats two people