Colons and semicolons
Use a colon (rather than an ellipses, em dash, or comma) to offset a list.
- Erin ordered three kinds of donuts: glazed, chocolate and pumpkin.
You can also use a colon to join two related phrases. If a complete sentence follows the colon, capitalize the first word.
- I was faced with a dilemma: I wanted a donut, but I’d just eaten a bagel.
Go easy on semicolons. They usually support long, complicated sentences that could easily be simplified. Try an em dash (—) instead, or simply start a new sentence.