Homonym: Pound Sign (Currency)
The "Pound Sign," also known as the "hash" or "octothorpe," is a symbol represented by the character "#". It is commonly used in various contexts, including social media, where it precedes keywords or phrases to create a hashtag. This helps categorize content and makes it easier for users to find related posts.
In addition to its use in social media, the pound sign has historical significance in telecommunications, where it was used to denote the end of a command. It is also found on telephone keypads, often used to navigate automated systems.