exchange of ideas; exchange of opinions; brainstorming
活発な意見交換が行われた。
An active exchange of opinions took place.
意見交換の場を設けたいと思います。
I'd like to set up a forum for exchanging opinions.
専門家同士の意見交換から新しいアイデアが生まれた。
New ideas were born from the exchange of opinions among experts.