em dash

noun

The symbol (—) (used to demarcate a parenthetical thought or to indicate a break, or for emphasis); a one-em or long dash.

Similar

Meanings

nounem dash (plural em dashes)

plural em dashes · alternative emdash · alternative em-dash · alternative m dash

  1. mediaThe symbol (—) (used to demarcate a parenthetical thought or to indicate a break, or for emphasis); a one-em or long dash.

    So now, no matter where it’s coming from or why, millions of people recognize the em dash as a sign of zero-effort, low-quality algorithmic slop.

    2025 December 3, Sam Kriss, “Why Does A.I. Write Like … That?”, in The New York Times Magazine, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 03 Dec 2025

    Synonyms: em rule, m-rule, mutton dash, ChatGPT hyphen

Synonyms & antonyms

nounThe symbol (—) (used to demarcate a parenthetical thought or to indicate a break, or for emphasis); a one-em or long dash.

Similar

Origin

Named for its width, which is equal to the width of the letter m or M, or approximately twice the width of an en dash.

Full word history & related roots →

Translations

Chinese Mandarin 長破折號 /长破折号
  • 長破折號 /长破折号typographical symbol '—'
Czech dlouhá pomlčka
  • dlouhá pomlčkatypographical symbol '—'
Dutch heel kastlijntje
  • heel kastlijntjetypographical symbol '—'
Finnish m-viiva, pitkä ajatusviiva
  • m-viivatypographical symbol '—'
  • pitkä ajatusviivatypographical symbol '—'
French tiret cadratin
  • tiret cadratintypographical symbol '—'
German Geviertstrich
  • Geviertstrichtypographical symbol '—'
Greek διπλή παύλα
  • διπλή παύλα (diplí pávla)typographical symbol '—'
Hungarian kvirtmínusz
  • kvirtmínusztypographical symbol '—'
Icelandic þankastrik
  • þankastriktypographical symbol '—'
Irish eim-dais
  • eim-daistypographical symbol '—'
Italian lineetta emme
  • lineetta emmetypographical symbol '—'
Persian تمامخط
  • تمامخط (tamâm-xat)typographical symbol '—'
Polish pauza
  • pauzatypographical symbol '—'
Portuguese travessão
  • travessãotypographical symbol '—'
Russian тире́
  • тире́ (tirɛ́)typographical symbol '—'
Spanish raya
  • rayatypographical symbol '—'
Swedish långt tankstreck, helfyrkantsminus
  • långt tankstrecktypographical symbol '—'
  • helfyrkantsminustypographical symbol '—'
Tagalog gatlang em
  • gatlang emtypographical symbol '—'
Cite this entry
APA

em dash. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/em%20dash

MLA

“em dash.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/em%20dash. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “em dash,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/em%20dash.

Source: em dash on Wiktionary, CC BY-SA 4.0.