also: はつたいめん
noun
first meeting; first encounter
Refers to meeting someone for the first time. Often used in the phrase 初対面の相手 (someone you are meeting for the first time).
初対面の相手と話すのは緊張する。
I get nervous talking to someone I'm meeting for the first time.
彼とは今日が初対
Today is the first time I've met him.