However, there are a few words that come close, depending on how you define "homonym":
* "hour" sounds very similar, especially in some accents, and is a common source of confusion.
* "are" has a similar sound in certain dialects, but the meaning is significantly different.
It's important to note that "homonym" is a broad term. Some consider "homophones" (words that sound the same but have different meanings and spellings) as homonyms, while others use a stricter definition.
So, while there's no exact homonym for "our," these words can create confusion and be considered near-homonyms.