–en dash

For a short but good explaination of when to use en-dash, em-dash, and figure-dash in English, see this English Language & Usage question at Stack Exchange.

To produce an en dash (“nut”):

Windows
Alt 0150 (using the numerical keyboard, with Num Lock on)
OS X
⌥ Opt -
Linux · BSD
⎄ Compose - - . or
Ctrl ⇧ Shift u 2 0 1 2 ⏎ Return (or Space) or
Shift AltGr - - .
Microsoft Word
Ctrl - (using the hyphen from the numerical keyboard)
LibreOffice · Open Office
Space - - Space (if enabled in the autocorrect options)
Android · iPhone
◎ tap and hold -
Unicode
U+2013
HTML
– · – · –
LaTeX
\textendash or
--

Similar characters: figure dash, ; em dash, ; quotation dash; minus sign, ; swung dash,