Rye is a popular cereal grain that is often used in various dishes and bakery products. However, if you are looking for synonyms for this term, you can use words like grain, wheat, barley, bristle, or straw. These terms are also commonly associated with various cereal crops, and they can be used interchangeably depending on the context. Additionally, you may use terms like black bread or sourdough bread as synonyms for rye since these types of bread are commonly made using rye flour. Overall, there are many synonyms for rye, and choosing the right term will depend on your specific needs and context.