What is another word for open letter?
Pronunciation: [ˈə͡ʊpən lˈɛtə] (IPA) 
An open letter is a communication that is intended for a wider audience and it is most commonly shared through social media. Synonyms for open letter include public letter, declaration, manifesto, statement, call to action, and announcement. A public letter is a message that is meant to be read and responded to by a group of people. A declaration is a formal statement or announcement of an opinion or intention. A manifesto is a set of beliefs or principles that are declared publicly. A statement is a formal expression of an opinion or agenda. A call to action is a statement that urges people to take action on a particular issue. An announcement is a formal statement of news or information.
