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em

1 American  
[em] / ɛm /

noun

ems plural
  1. the letter M, m.

  2. Also called mut, muttonPrinting.

    1. the square of any size of type used as the unit of measurement for matter printed in that type size.

    2. (originally) the portion of a line of type occupied by the letter M in type of the same size.

  3. em pica.


adjective

  1. Printing. having the area of an em quad or the length of an em dash.

'em 2 American  
[uhm] / əm /

pronoun

Informal.
  1. them.

    Put 'em down there.


Em 3 American  
Symbol, Physical Chemistry.
  1. emanation.


EM 4 American  

abbreviation

  1. electromagnetic.

  2. electromotive.

  3. electronic mail.

  4. electron microscope; electron microscopy.

  5. end matched.

  6. Engineer of Mines.

  7. enlisted man; enlisted men.


em- 5 American  
  1. variant of en- before b, p, and sometimes m:

    embalm.


em- 6 American  
  1. variant of en- before b, m, p, ph:

    embolism, emphasis.


E.M. 7 American  

abbreviation

  1. Earl Marshal.

  2. Engineer of Mines.


em 1 British  
/ ɛm /

noun

  1. Also called: mutton.   mut.  the square of a body of any size of type, used as a unit of measurement

  2. Also called: pica em.   pica.  a unit of measurement used in printing, equal to one sixth of an inch

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

'em 2 British  
/ əm /

pronoun

  1. an informal variant of them

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

em- 3 British  

prefix

  1. before b, m, and p, a variant of en- 1 en- 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of em1

First recorded in 1860–65

Origin of 'em2

First recorded in 1350–1400; Middle English hem, Old English heom, dative and accusative plural of he 1

Vocabulary lists containing em

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The turnover ➡️ The easy deuce for Khamenia @DukeMBB makes em pay.

From Los Angeles Times Mar. 30, 2026

Last week, OpenAI CEO Sam Altman posted on X the following brag: “Small-but-happy win: If you tell ChatGPT not to use em dashes in your custom instructions, it finally does what it’s supposed to do!”

From The Wall Street Journal Nov. 20, 2025

Because more than any other punctuation mark, the em dash is deeply human.

From The Wall Street Journal Nov. 20, 2025

The news drew praise from public figures, including Jennifer Lopez, California Governor Gavin Newsom, and Bruno Mars, who wrote on X, “Go get em Bad Bunny!”

From Salon Sep. 29, 2025

I can’t tell her I’m fired, I don’t want her to blame her mama and make it worse between em.

From "The Help" by Kathryn Stockett

Pokémon fans have spent the past three decades trying to catch 'em all - and since the beginning this hunt has often taken place outside the home.

From BBC Jul. 13, 2026

"I think let 'em play," Trump said in late April.

From Barron's May 18, 2026

They couldn’t send me new ones — I had ’em all.

From Los Angeles Times Apr. 25, 2026

In “Pinball Wizard,” the Who’s Roger Daltrey sings: “Ever since I was a young boy, I’ve played the silver ball / From Soho down to Brighton, I must’ve played ’em all.”

From The Wall Street Journal Apr. 15, 2026

“Brought you some things for dinner tonight. I’ll just put ’em in the kitchen.”

From "The Line Tender" by Kate Allen

The experimental-video director with the white faux hawk I met at Go Get Em Tiger in East Hollywood.

From Los Angeles Times May 29, 2026

“Let God Sort Em Out” came 16 years after their last release, which had marked the end of the Virginia Beach-born group amid a “come to God” moment for Malice.

From Los Angeles Times Apr. 9, 2026

England internationals Em Arlott, Amy Jones, Danielle Gibson, Sarah Glenn and Linsey Smith are among the women's players to enter the draft at the £50,000 reserve price.

From BBC Feb. 20, 2026

Clipse, the duo of Pusha T and his brother Malice, reunited to release “Let God Sort Em Out,” their first album in more than 15 years, and nabbed five nominations.

From The Wall Street Journal Nov. 7, 2025

From across the cafeteria, she spotted Em walking toward their comer table, wearing a baggy green sweatshirt and carrying her tray.

From "Goodbye Stranger" by Rebecca Stead

Strong performance in the EM space has increasingly been driven by a handful of stocks trading in Taiwan and South Korea, which play host to some of the world’s most influential AI hardware companies.

From MarketWatch Jul. 7, 2026

In pre-market trading Thursday TSMC’s U.S.-listed depositary receipts were 1.87% higher at $440 and the EM ETF was indicating a gain of 2.52% at 70.29.

From MarketWatch Jun. 18, 2026

“Ultimately, we think the long-term outlook for gold will depend on the level of reserves EM central banks end up with, and the share of gold they target,” he said in written commentary.

From MarketWatch Apr. 30, 2026

“EM debt is much less volatile than EM equities with similar returns over time,” she says.

From Barron's Apr. 20, 2026

The sealed rubber jar batteries include types EM, EEW, IPR, SMW, and SEW.

From The Automobile Storage Battery Its Care And Repair by Witte, Otto A.

Font Bureau even did some customization for us—they provided us with wider em- and en-dashes for our home page headline font, for example, since our headlines are full of em-dashes.

From Slate Sep. 23, 2013

Dr. Allen Sinclair Will, 65, founder & director of Rutgers' Department of Journalism, onetime city editor of the Baltimore Sun; of cerebral em- bolism complicated by pneumonia; in Manhattan.

From Time Magazine Archive

In the future, more and more of them may em- ulate the experiments of Tanzania and Kenya.

From Time Magazine Archive

The forms en- and em- are of French origin.

From New Word-Analysis by William Swinton

Scientific terms 127:9 The terms Divine Science, Spiritual Science, Christ         Science or Christian Science, or Science alone, she em-         ploys interchangeably, according to the re- 127:12 quirements of the context.

From Science and Health, with Key to the Scriptures by Eddy, Mary Baker

When circumstance, and one’s own body, seem to conspire against you, one can, as E.M.

From Los Angeles Times Oct. 29, 2025

She also starred with Olivier and Harry Hamlin in Cross’ adaptation of the Greek epic “Clash of the Titans” and a slew of film comedies before landing in the 1985 Merchant Ivory production of E.M.

From Los Angeles Times Sep. 27, 2024

Happy endings in queer cinema can be credited to "Maurice," the 1987 romance drama based on E.M.

From Salon Aug. 25, 2023

He is best remembered for his starring role at 27 opposite Helena Bonham Carter in “A Room With a View,” the Oscar-nominated Ivory and Merchant adaptation of E.M.

From New York Times Jan. 19, 2023

Hence it is seen that when a wave of disturbance is propagated along the plant, there is a concomitant wave of radial E.M. variation.

From Response in the Living and Non-Living by Bose, Jagadis Chandra, Sir

Linotype swifts, as praised in the Linotype Bulletin in 1921, could easily hit sustained rates above 10,000 ems an hour.

From Economist Mar. 30, 2018

Newsham said prompt treatment by fire and ems personnel at the scene helped to improve the boy’s prospects.

From Washington Post Jul. 10, 2017

That is if any of us are lucky or unlucky enough to become ems.

From The Wall Street Journal Jun. 10, 2016

Hanson doesn’t think that ems must necessarily live unhappy lives.

From The New Yorker Jun. 9, 2016

In the hour he set 5,900 ems solid nonpareil, and the machine perfectly spaced and justified it, and of course distributed the like amount in the same hour.

From Mark Twain's Letters — Volume 4 (1886-1900) by Paine, Albert Bigelow

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