something supposedly secret but actually known quite generally.
something that is supposed to be secret but is widely known
Something that is supposedly clandestine but is in fact widely known, as in It’s an open secret that both their children are adopted. This expression originated as the title of a Spanish play by Calderón, El Secreto a Voces (“The Noisy Secret”), which was translated by Carlo Gozzi into Italian as Il pubblico secreto (1769). In English the term came into general use during the 1800s.
noun 1. any marvelously effective means for bringing about a desired result: Wealth is the open sesame to happiness. noun 1. a very successful means of achieving a result
noun 1. Mathematics. an equation or inequality containing one or more variables in which its truth or falsehood depends upon the values assumed by the variables in a particular instance, as the equation x + 3 = 8. 2. Logic. a propositional function that contains a free variable, as “ x is a man.”. noun […]
[oh-puh n-shelf] /ˈoʊ pənˈʃɛlf/ adjective 1. .
- Open shortest-path first
Open Shortest-Path First Interior Gateway Protocol