What is Hyphen?

A hyphen (-) is a punctuation mark used to join words to indicate that they have a combined meaning or to show word breaks at the end of a line. It's commonly used to create compound words (e.g., 'well-being'), to link prefixes to words (e.g., 're-enter'), and to separate numbers or dates (e.g., '1990-2000'). It is distinct from dashes (en dash and em dash), which serve different purposes.