Typographic ligature

A typographic ligature is a special symbol made up of two or more letters that come together as one. It is used as a way to make reading easier and writing look more attractive. For example, when you read the word "fish", it can look a little strange with the two "f" and "i" placed together. A typographic ligature could make the word look nicer by combining the two letters into one symbol that looks like an "fi" instead.