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[syn: face-to-face, opposite]
The Collaborative International Dictionary of English v.0.48:
face-to-face \face-to-face\ adj.
   1. without intervening persons; involving direct
      communication between persons in each other's presence; --
      of conversation or confrontation; as, face-to-face
      negotiations.
   Syn: person-to-person.
        [WordNet 1.5 +PJC]
   2. having the front parts facing each other.
      [PJC]
WordNet (r) 3.0 (2006):
face-to-face
    adv 1: within each other's presence; "she met the president
           face-to-face"
    2: directly facing each other; "the two photographs lay face-to-
       face on the table"; "lived all their lives in houses face-to-
       face across the street"; "they sat opposite at the table"
       [syn: face-to-face, opposite]
    adj 1: in each other's presence; "a face-to-face encounter"
The Free On-line Dictionary of Computing (30 December 2018):
face-to-face
F2F
    (F2F, IRL) Used to describe personal
   interaction in real life as opposed to via some digital or
   electronic communications medium.
   (1997-01-31)