Hyphen Usage—Rules and Examples | Grammarly
www.grammarly.com › blog › hyphenJan 14, 2021 · A hyphen (-) is a punctuation mark that’s used to join words or parts of words. It’s not interchangeable with other types of dashes. Use a hyphen in a compound modifier when the modifier comes before the word it’s modifying. If you’re not sure whether a compound word has a hyphen or not, check your preferred dictionary.