The term "spares rod" can be related to various synonyms depending on the context. It can refer to fishing rods as the term "spares" is commonly used to indicate extra or backup equipment. In this context, synonyms for spares rod include spare fishing poles, additional fishing gear, or backup fishing equipment. The term "spares rod" can also refer to a mechanical or automotive part that is used as a replacement or backup in case of a breakdown. In this context, synonyms for spares rod include spare part, replacement rod, or backup component. Regardless of the context, the use of "spares rod" indicates an extra item that is available to use in case of a need.