noun
open campus; open day
Abbreviation of オープンキャンパス. Used mainly by students and university staff in casual contexts to refer to events where prospective students visit a campus.
See also: オープンキャンパス
来月のオーキャンに行ってみようと思ってる。
I'm thinking of going to the open campus next month.
オーキャンの申し込み、もうした?
Did you already sign up for the open campus?