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An en dash is the approximate size of the letter “N.” There is no space before or after it. An en dash should never be used as a substitute for an em dash.
2. As a replacement for “to” or “up to and including” (If from is used, the en dash can’t be used and to must be used. If between is used, and must be used.)
Example: Read pages 85–115 in your textbook tonight.
3. To indicate something ongoing
Example: Jason Jones (1970–) is living in Wyoming. (Indicates he was born in 1970 and is still living.)
4. En dash in place of a hyphen in a compound adjective when one or more of its elements is an open compound or when two or more of its elements are hyphenated compounds
Example: a quasi-public–quasi-judicial body