Dialogue, Talk
Noun and する verb
たいだん
コウイチとスティーヴ・ブシェミのゆめの対談が実げんしました！
The dream of Koichi and Steve Buscemi talking came true!
ざんねんながら、そろそろこの対談をおわらせる時間になってしまいました。
Unfortunately, it's time to bring this conversation to a close.
有名な作家と対談してみたい。
I want to talk with a famous writer.
A versus discuss is when you sit and look at another person. You are discussing something versus them, so you talk back and forth to each other. In this way, you are having a conversation.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.