Comment Re:As a literature/writing nerd... (Score 1) 122
And to elaborate further, there isn't just a "dash," but rather an "en dash" and an "em dash."
The "en dash" is used in ranges (e.g. "from [x] to [y]") which is typically numerical but can be words: https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.sussex.ac.uk%2Finformatics%2Fpunctuation%2Fhyphenanddash%2Fhyphen. So it is a cousin to the hyphen in that it can connect words, but as you said, is most certainly not interchangeable with a hyphen.
The "em dash" is the dash you mentioned: https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.sussex.ac.uk%2Finformatics%2Fpunctuation%2Fhyphenanddash%2Fdash. What I did not know as an American (though one familiar with the OED) is that the double hyphen is (was?) acceptable in American usage as an em dash. Most word processors set to U.S. English will automatically convert a double hyphen to an em dash -- which begs the question, if MS Word's autocorrect for U.S. English converts an American-style dash to a British-style dash, is it still U.S. English? And yes, I know this is a configurable setting in Word AutoCorrect/AutoFormat, but it is enabled by default, suggesting that the Brits write better English.