Banner cloud can be referred to as a cumulonimbus cloud. It is also known as a thundercloud as it is associated with electrical activity and thunderstorms. Banner clouds are also called towering clouds due to their upward growth, and they can extend up to 10 km into the atmosphere. Other synonyms for banner clouds include storm clouds, anvil clouds, or cumulonimbus incus clouds. These clouds are formed through the upward heating of moist air, leading to the formation of water droplets and ice crystals. The different synonyms for banner clouds serve as alternative names to describe this meteorological phenomenon.