A double dash (--) is a punctuation mark used in writing for various purposes. It can be used to:
1. Indicate a range of numbers or dates:
- Example: Pages 10--20
- Example: Years 1990--2000
2. Indicate a pause or interruption in a sentence:
- Example: "I'm going to the store -- I need some milk."
- Example: "The meeting was scheduled for 10:00 am -- but it was delayed."
3. Represent a missing word or phrase:
- Example: "I'm not sure what to say -- it's just a very difficult situation."
- Example: "I'm not sure -- I'll have to check with my boss."
4. Separate two parts of a sentence that are closely related:
- Example: "The weather was beautiful -- sunny and warm."
- Example: "I love my new car -- it's so much fun to drive."
It's important to note that the use of double dashes can vary depending on the style guide or writing conventions being followed.
