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  • er
    er
    interjection
    (used to express or represent a pause, hesitation, uncertainty, etc.)
  • Er
    Er
    erbium.
  • ER
    ER
    abbreviation
  • -er
    -er
    a suffix used in forming nouns designating persons from the object of their occupation or labor (hatter; tiler; tinner; moonshiner ), or from their place of origin or abode (Icelander; southerner; villager ), or designating either persons or things from some special characteristic or circumstance (six-footer; three-master; teetotaler; fiver; tenner ).
  • E.R.
    E.R.
    abbreviation
    King Edward.
Synonyms

er

1 American  
[uh, er] / ə, ər /

interjection

  1. (used to express or represent a pause, hesitation, uncertainty, etc.)


Er 2 American  
Symbol, Chemistry.
  1. erbium.


ER 3 American  

abbreviation

  1. Baseball. earned run.

  2. efficiency report.

  3. emergency room.


-er 4 American  
  1. a suffix used in forming nouns designating persons from the object of their occupation or labor (hatter; tiler; tinner; moonshiner ), or from their place of origin or abode (Icelander; southerner; villager ), or designating either persons or things from some special characteristic or circumstance (six-footer; three-master; teetotaler; fiver; tenner ).

  2. a suffix serving as the regular English formative of agent nouns, being attached to verbs of any origin (bearer; creeper; employer; harvester; teacher; theorizer ).


-er 5 American  
  1. a noun suffix occurring in loanwords from French in the Middle English period, most often names of occupations (archer; butcher; butler; carpenter; grocer; mariner; officer ), but also other nouns (corner; danger; primer ). Some historical instances of this suffix, as in banker or gardener, where the base is a recognizable modern English word, are now indistinguishable from denominal formations with -er1, as miller or potter.


-er 6 American  
  1. a termination of nouns denoting action or process: dinner; rejoinder; remainder; trover .


-er 7 American  
  1. a suffix regularly used in forming the comparative degree of adjectives: harder; smaller .


-er 8 American  
  1. a suffix regularly used in forming the comparative degree of adverbs: faster .


-er 9 American  
  1. a formal element appearing in verbs having frequentative meaning: flicker; flutter; shiver; shudder .


-er 10 American  
  1. a suffix that creates informal or jocular mutations of more neutral words, which are typically clipped to a single syllable if polysyllabic, before application of the suffix, and which sometimes undergo other phonetic alterations: bed-sitter; footer; fresher; rugger . Most words formed thus have been limited to English public-school and university slang; few, if any, have become current in North America, with the exception of soccer, which has also lost its earlier informal character.


E.R. 11 American  

abbreviation

  1. King Edward.


E.R. 12 American  

abbreviation

  1. Queen Elizabeth.


E.R. 13 American  

abbreviation

  1. East Riding (Yorkshire).

  2. East River (New York City).

  3. emergency room.


-er 1 British  

suffix

  1. a person or thing that performs a specified action

    reader

    decanter

    lighter

  2. a person engaged in a profession, occupation, etc

    writer

    baker

    bootlegger

  3. a native or inhabitant of

    islander

    Londoner

    villager

  4. a person or thing having a certain characteristic

    newcomer

    double-decker

    fiver

"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

ER 2 British  

abbreviation

  1. (in the US) Emergency Room (in hospitals)

  2. Elizabeth Regina

  3. Eduardus Rex

"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

-er 3 British  

suffix

  1. forming the comparative degree of adjectives ( deeper, freer, sunnier, etc) and adverbs ( faster, slower, etc)

"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

Er 4 British  

symbol

  1. erbium

"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

er 5 British  
/ ə, ɜː /

interjection

  1. a sound made when hesitating in speech

"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

er 6 British  

abbreviation

  1. Eritrea

"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

Etymology

Origin of -er4

Middle English -er(e), a coalescence of Old English -ere agentive suffix (cognate with Old High German -āri, Gothic -areis, from unattested Germanic -arjaz, from unattested Slavic -arĭ, from Latin -ārius ) and Old English -ware suffix forming nouns of ethnic or residential origin (e.g., Rōmware “Romans”), cognate with Old High German -āri, from unattested Germanic -warioz “people”; see origin at -ary

Origin of -er5

Middle English < Anglo-French -er, equivalent to Old French -er, -ier < Latin -ārius, -ārium. Cf. -ary, -eer, -ier 2

Origin of -er6

< French, originally infinitive suffix -er, -re

Origin of -er7

Middle English -er ( e ), -re, Old English -ra, -re; cognate with German -er

Origin of -er8

Middle English -er ( e ), -re, Old English -or; cognate with Old High German -or, German -er

Origin of -er9

Middle English; Old English -r-; cognate with German - ( e ) r-

Origin of -er10

Probably modeled on nonagentive uses of -er 1; said to have first become current in University College, Oxford, 1875–80

Origin of E.R.11

From New Latin Edwardus Rex

Origin of E.R.12

From New Latin Elizabeth Regina

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:

Staples — er, Crypto.com Arena — is where Kobe Bryant dropped 81.

From Los Angeles Times Jul. 11, 2026

They are, er, not wholly convinced that there's a level playing field when the east coast is threatening to usurp a giant from the west.

From BBC May 13, 2026

The former Oracle employee’s comedy—which can poke fun at his previous career in sales, er, the “revenue side of strategic pipeline development”—has struck a chord and is earning him millions.

From The Wall Street Journal Mar. 27, 2026

We should just accept that we’re better off living in a van – er, cabin by the river.

From Salon Mar. 23, 2026

“If I was ter — er — speed things up a bit, would yeh mind not mentionin’ it at Hogwarts?”

From "Harry Potter and the Sorcerer's Stone" by J.K. Rowling

"The specific name lii honors Li Er, the ancient Chinese philosopher better known as Laozi," said the research team, led by Bo Cai.

From Science Daily Apr. 22, 2026

But the current Draco obsession stems from the transliteration of his surname, "Ma Er Fu", which contains the Chinese characters for "horse" and "good fortune" -- an auspicious omen for the year ahead.

From Barron's Feb. 5, 2026

God we hope not, we don’t want to work those nights … Er, let’s hope so, for democracy!

From Slate Apr. 13, 2024

Er, try telling that to some supporters as perspective went out the window and they picked apart where it all went wrong.

From BBC Mar. 27, 2024

No longer crowded with students, Xin Er Primary School seemed much larger and quieter during summer vacation.

From "Red Scarf Girl: A Memoir of the Cultural Revolution" by Ji-li Jiang

In an eight-hour shift, the ER doctor at ProMedica Monroe Regional Hospital might treat five or six patients with telltale signs of cyclospora.

From The Wall Street Journal Jul. 10, 2026

He has also had a prolific television career, with recurring roles in standards including "Hill Street Blues" and "ER."

From Barron's Jul. 1, 2026

ER visits in the U.S. rise during heat emergencies, according to a 2021 study published in a British medical journal that found those visits increase by about 8% during days with extreme heat.

From MarketWatch Jun. 30, 2026

Her resume also includes single-episode roles in the TV dramas Charmed, ER and Touched by an Angel.

From BBC Jun. 17, 2026

Or by sticking to my one-person strike until—who knows?—she eventually relented and let us drive her to the nearest ER or at least sat down?

From "Nickel and Dimed: On (Not) Getting By in America" by Barbara Ehrenreich

Among wealthy university students in the 1880s and 1890s, there was a habit of shortening words and adding "-er" to the end, creating a kind of slang.

From BBC Jun. 13, 2026

Her th sounds were more like d sounds, pronouncing the word "those" like "doze," and if a word ended in -er, like "number," she said, "num-bah."

From Salon Sep. 25, 2022

The girl is embarrassed that she doesn’t understand, and replies, “I -er, oh, I don’t know, suh. I didn’t know you-er anybody could ride uh fish.”

From Seattle Times Feb. 27, 2020

Dennis Van Derlaske of Woodbridge noted that it makes sense that the Kennedy Center’s Eisenhower Theater is spelled with an -er.

From Washington Post Oct. 15, 2019

Soccer was supposed to be an easy one, but I forgot about the -er not -re at the end.

From Absolutely Almost by Lisa Graff

But the betting here is that a viewer will be preoccupied by thinking about the multitude of head injuries someone like Robby would encounter in the E.R., and why he doesn’t wear a helmet himself.

From The Wall Street Journal Jan. 6, 2026

“Nobody ever wins a fight,” he solemnly tells the hot E.R. doctor who patches him up, echoing the words of Swayze’s sunrise tai chi practitioner.

From Salon Mar. 24, 2024

Presley, who’s vowed to work to expand Medicaid, responded from a shuttered E.R.:

From Los Angeles Times Nov. 2, 2023

Weicker was born in Paris in 1931, to Lowell P. Weicker Sr. — whose family founded the pharmaceutical giant E.R.

From Seattle Times Jun. 28, 2023

My parents knew somebody had to go rushing out of there with Jeffrey to the E.R., but who?

From "Drums, Girls, and Dangerous Pie" by Jordan Sonnenblick

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