Caerphilly is a place in South Wales known for its majestic Caerphilly Castle, built in the 13th century. However, there are a few synonyms for this town and surrounding area. One is the Welsh name Caerffili, which means 'Fortress of Gwilym'. Another alternative is the term "cheese town," as Caerphilly is famous for its creamy cheese with a distinctive texture. Additionally, it's known as a coal mining town with a rich history of industry, thus the moniker "mining city" could be applicable. Despite having several alternative names, Caerphilly remains popular for its beautiful countryside, medieval castles, and industrial heritage.