A Kashan rug is a type of Persian rug that is known for its intricate designs and high quality. However, there are several other terms that can be used to describe similar styles of rugs. For example, Isfahan rugs are also produced in Iran and are known for their similar level of craftsmanship and detail. Tabriz rugs, also from Iran, are known for their elegant designs and often feature floral motifs. Similarly, Qum rugs are also highly sought after for their exquisite attention to detail and intricate patterns. Other Persian rug styles include Nain, Gabbeh, and Heriz, each with their own unique characteristics and designs.