open secret

US /ˈoʊpən ˈsiːkrət/
UK /ˈoʊpən ˈsiːkrət/
"open secret" picture
1.

سر مكشوف, سر علني

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.
إنه سر مكشوف أنهما يخططان للزواج.
His affair with his assistant was an open secret in the office.
علاقته مع مساعدته كانت سراً مكشوفاً في المكتب.