* Noun: When referring to the general concept of polite behavior, "manners" is a noun.
* Example: "Good manners are essential in society."
* Adjective: Sometimes, "mannered" is used as an adjective meaning "having or showing good manners" or "refined."
* Example: "She is a well-mannered young woman."
* Verb: In some contexts, "manner" can be a verb, usually meaning "to behave" or "to act."
* Example: "The guests mannered themselves with decorum."
It's important to understand the context to determine the correct part of speech.