When do you use a hyphen in a sentence?

Hyphens are used in sentences to connect words (or parts of words) that act together as a unit. For example:

  • Compound adjectives (“He is a well-known actor”)
  • Compound nouns (“My sister-in-law is an engineer”)
  • Numbers (“There are twenty-five students in my class”)

There are many rules about when hyphens should and should not be used. QuillBot’s Grammar Checker can help you use hyphens correctly in your writing.