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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:

Marcy eliminates em dashes and sometimes swaps in sentences of his own, even though he knows he tends toward the run-on variety.

From The Wall Street Journal May 6, 2026

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

From Los Angeles Times Mar. 30, 2026

In my writing, ChatGPT tells me I use 11 em dashes every 1,000 words.

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’m on ask em again,” she says, leaning forward.

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

“You bring ‘em in, you sit ‘em down and they talk. That’s all ‘Cheers’ was,” Burrows told The Times.

From Los Angeles Times Jun. 19, 2026

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

From Barron's May 18, 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

“It is. So instead I took that, one of Carlyle’s caps with his name in it, and a photograph of him and two teammates, wrapped it all up tight, and stashed ’em somewhere safe.”

From "Fast Pitch" by Nic Stone

“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

It left Bell as the most experienced of a pace group that includes Issy Wong and Lauren Filer, plus all-rounders Danielle Gibson, Em Arlott and Freya Kemp.

From BBC Apr. 9, 2026

L.A. beans though, either Counter Culture or Go Get Em Tiger would be my beans of choice.

From Los Angeles Times Feb. 6, 2026

He faces competition from fellow rap maverick Tyler, The Creator with his wildly inventive Chromakopia; and reunited hip-hop duo Clipse, whose Let God Sort Em Out is their first release since 2009.

From BBC Nov. 7, 2025

Em sighed and, still wearing her coat, lay back on the coffee table.

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

EM economies are taking the brunt of the whiplash.

From Barron's May 23, 2026

EM earnings have been revised “meaningfully” higher, providing a tailwind and a way to diversify exposure to AI beyond the U.S., she said.

From MarketWatch Apr. 22, 2026

The line NC is called the sine of the angle of incidence NDC, and EM the sine of the angle of refraction MDE.

From Wireless Transmission of Photographs Second Edition, Revised and Enlarged 1919 by Marcus J. Martin

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

Enmesh, en-mesh′, Emmesh, em-, Immesh, im-, v.t. to catch in a mesh or net, to entangle.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various

Arthur is in part a crafty composite of the writer E.M.

From Los Angeles Times Nov. 4, 2025

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

From Los Angeles Times Oct. 29, 2025

Soucy focuses on the highs of Merchant and Ivory’s films, which began in the 1960s with films like “The Householder” and “Shakespeare-Wallah,” and developed over the next two decades before their 1985 adaptation of E.M.

From Salon Aug. 30, 2024

The beauty of her study is the range of her examples: We’re unlikely to see Charles Darwin, Zora Neale Hurston, Frederick Douglass, Matthew Arnold and E.M.

From New York Times Mar. 10, 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 Sir Jagadis Chandra Bose

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

They will be able to share their experiences with other 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

From now I pays the union schedoole, the same bein' five cents a thousand ems more than former.

From Wolfville Days by Alfred Henry Lewis

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