対顔 is read as たいがん (taigan) and means meeting.
たいがん
taigan
たいにち
toward Japan
たいりつ
confrontation
たいわ
dialogue
たいけつ
たいだん
talk
たいめ
meeting face-to-face
たいしょ
dealing with
たいとう
equality (esp. of status)
たいする
to receive (a client, etc.)
たいがい
external
たいべい
relating to the USA
たいせん
fighting (against)