- Use a dash to indicate a sudden break in continuity or to set off an explanatory, a defining, or an emphatic phrase:
The sky grew dark—where were the kids?
Dairy foods—milk, cheese, yogurt—are a good source of calcium.
- Use a hyphen to join the elements of a compound word or to join the elements of a compound modifier before a noun:
| well-wisher||ice-skating rink|
| fifty-three||college-age students|
- Use a hyphen to divide a word at the end of a line:
Rasputin is one of history's most enig-
matic and intriguing figures.
See also: The Dash and the Hyphen and the Ellipsis