* Noun: This is the most common use, referring to the state of tranquility, freedom from war, or absence of disturbance.
* Verb: Used less frequently, it means to make peace or to quiet or calm something.
* Adjective: While not as common, "peace" can also be used as an adjective meaning "peaceful" or "tranquil."
Examples:
* Noun: "The peace treaty ended the war."
* Verb: "The mother tried to peace her crying baby."
* Adjective: "The peace room was a quiet place to escape the noise."
Ultimately, the part of speech "peace" is depends on how it is used in a sentence.