Do the words “en dash” and “em dash” require a hyphen?
I have seen the compound words “en dash” and “em dash” sometimes appear with a hyphen (“en-dash”) and sometimes without. Are both the hyphenated and the unhyphenated forms correct? Answer There is no unanimity on the proper form of this term—at least not among U.S. authorities. Merriam-Webster’s Eleventh Collegiate Dictionary (2003) doesn’t include entries for … Read more