noun
opposite player (mahjong)
Mahjong term for the player sitting directly across the table.
from Chinese duìmiàn
対面からリーチがかかった。
The player opposite me declared riichi.
noun
person opposite; opposite side
Colloquial extension of the mahjong term; refers to a person or thing directly opposite in a face-to-face arrangement, such as across a table or in a meeting.
会議で対面に座っている人と意見が合わない。
I don't agree with the person sitting opposite me in the meeting.
あのカフェ、対面の席が近すぎるんだよね。
At that café, the seats opposite are too close, you know.