The Basics

[1] Dates

          1948--1952
          James Gregory (1986
--) (Still alive)

Beyond the Basics

[2] Stuttering

          J--j---j---j-jack said I could.

[3] as a replacement for "to" or "up to and including"

          My salad years, 2002--2006, were the hardest years of my life.
          Be sure to read pages 16--25.
  
          
Note: after  the word "from," use "to" instead of an en dash

                     I lived in Jersey from 1995 to 1997.

          
Note: after the word "between," use "and" instead of an en dash.

                     I lived in Jersey between 1995 and 1997.

[4] To indicate something ongoing

          John Davis (1975--) is currently living in Florida.  (Indicates that he was born in 1975 and is still living)

[5] 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

          post--World War II decades
          a nursing home--home care policy
          a quasi-public--quasi-judicial body
          non-English-speaking

Syntax

No space before or after.

Usage Key

In the absence of a true en dash, a hyphen will do just fine.

Misuse

An en dash is never a proper substitute for an em dash.

Let's Talk Style

Let's see how the pros use it
En Dash (-)
Due to html limitations, I am using (--) a double hyphen, but a true en dash is the width of an N.
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