a fact that is widely known, but not acknowledged openly

listen to the pronunciation of a fact that is widely known, but not acknowledged openly
الإنجليزية - الإنجليزية
open secret

It was an open secret in the profession at that time that Mr. Field had very explicit documentary evidence that would have made Mr. Evarts very uncomfortable had the Bar Association thrown down the gauntlet.

a fact that is widely known, but not acknowledged openly
المفضلات