peace / piece are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
peace: (noun) the state prevailing during the absence of war. (noun) harmonious relations; freedom from disputes. (noun) the absence of mental stress or anxiety. (noun) the general security of public places. (noun) a treaty to cease hostilities.
piece: (noun) a separate part of a whole. (noun) an item that is an instance of some type. (noun) an instance of some kind. (noun) an artistic or literary composition. (noun) a serving that has been cut from a larger portion. (noun) a distance. (verb) join during spinning. (verb) repair by adding pieces.
peace: p·IY·s
piece: p·IY·s
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)