Before I write about the differences between the three, permit me to say the obvious; don’t I have better things to do? Do I have so much free time that I can spend it pouring over the pages of The Chicago Manual of Style?
I am not really a grammar geek. I rely heavily on the graciousness of others who paid attention in English class. However, it drives my editor nuts when I use the wrong key on my computer, leaving him to have to use a magnifying glass to proof my newsletter column.
I provided a link (Get it Write) so you can get a good explanation of the differences between the three, but here is a basic explanation:
- A hyphen is the shortest of the dashes and it is usually used between numbers (like your phone number) or to connect words, such as mean-spirited.
- The en dash is slightly longer than the hyphen. It replaces the word through, such as Monday – Friday.
- The em dash is the longest of the dashes and creates a break in a thought—such as this sentence—in order to separate a phrase.