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hyphen vs. em dash

hyphen
[hahy-fuhn] / ˈhaɪ fən /

noun

  • hyphens
    plural

  1. a short line (-) used to connect the parts of a compound word or the parts of a word divided for any purpose.

verb (used with object)

  • hyphens,
    present (3rd person singular)
  • hyphened,
    past participle,  past
  • hyphening
    present participle

  1. hyphenate.

em dash

noun

Printing.

  1. a dash one em long.