Human: What is the difference between a hyphen and an en-dash? Assistant: 
The main difference between a hyphen and an en-dash is that a hyphen is used to join words, while an en-dash is used to separate numbers or letters. An en-dash can also be used as a range of numbers, such as 1–10. A hyphen is usually placed at the end of a word, while an en-dash can be placed anywhere within a sentence.