face-to-face (Adjective) — In each other's presence. ex. "a face-to-face encounter"
face-to-face (Adverb) — Within each other's presence. ex. "she met the president face-to-face"
face-to-face (Adverb) — Directly facing each other. ex. "the two photographs lay face-to-face on the table" ex. "lived all their lives in houses face-to-face across the street"
face-to-face (Adverb) — Involving close contact; confronting each other. ex. "they spoke face to face"