What is the Pound Key?

The pound key, also known as the hash symbol (#), is a character that is commonly used in various contexts. On telephones, it is often used to navigate through automated systems or to indicate the end of an input. In social media, the pound key is used to create hashtags, which help categorize content and make it easier to find related posts. Additionally, in programming, the pound key is used for different purposes depending on the language, such as indicating comments or preprocessor directives. The term ‘pound key’ is primarily used in the United States, while in other countries, it may be referred to as the hash key or simply the hash symbol.