* Noun: This is the most common usage. It refers to a formal announcement or declaration, especially one made by a sovereign or other high authority.
* Example: "The king issued a proclamation declaring war."
* Verb: It can also be used as a verb, meaning to announce something formally or publicly.
* Example: "The mayor proclaimed the city's new slogan."
So, the part of speech for "proclamation" depends on the context in which it is used.