There isn't a perfect homonym for "peace" in the English language. A homonym is a word that is spelled and pronounced the same as another word, but has a different meaning. "Peace" is a noun, and there's no other word that is both spelled and pronounced the same as "peace" that also functions as a noun.
However, there are some words that share a similar sound with "peace", but are spelled differently:
* Piece: This is a homophone of "peace", meaning a part of something, but it is spelled differently.
Let me know if you'd like to explore other word relationships, like synonyms or near-synonyms!