open secret
US /ˈoʊpən ˈsiːkrət/
UK /ˈoʊpən ˈsiːkrət/
1.
公然の秘密
a fact that is supposed to be secret but is actually known by many people
:
•
It's an open secret that they are planning to get married.
彼らが結婚を計画しているのは公然の秘密だ。
•
His affair with his assistant was an open secret in the office.
彼のアシスタントとの不倫は、オフィスでは公然の秘密だった。