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{{wiktionary|er|Er|ER|-er| | {{wiktionary|er|Er|ER|-er|Appendix:Variations of "er"}} | ||
'''ER''' or '''Er''' may refer to: | '''ER''' or '''Er''' may refer to: | ||
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{{TOC right}} | {{TOC right}} | ||
== | == Arts, entertainment and media == | ||
* [[ER (TV series)|''ER'' (TV series)]], a 1994–2009 American medical drama series | |||
* [[ | * ''[[E/R]]'', a 1984–1985 American TV sitcom | ||
* | |||
* Er, a character in Plato's ''[[Myth of Er]]'' | * Er, a character in Plato's ''[[Myth of Er]]'' | ||
* ''Er'', a 2005 album by [[Nils Petter Molvær]] | |||
* [[ER (song)|"ER" (song)]], a 2012 song by Kanjani Eight | |||
* "ER", a song by Royce da 5'9" featuring Kid Vishis from the 2011 album ''[[Success Is Certain]]'' | |||
* ''[[Chico Enterprise-Record]]'', the daily newspaper of Chico, California, US | |||
* ''Er'', | |||
* [[ER (song)|"ER" (song)]], a 2012 | |||
* "ER", a song by Royce da 5'9" featuring Kid Vishis from ''[[Success Is Certain]]'' | |||
* ''[[Chico Enterprise-Record]]'', the daily newspaper of Chico, California | |||
== Businesses and organizations == | == Businesses and organizations == | ||
* [[Astar Air Cargo]], an American cargo airline, IATA designator ER | |||
* [[Astar Air Cargo]] | * [[Eastern Railway zone]], in India | ||
* [[Eastern Railway | |||
* [[Estonian Reform Party]] | * [[Estonian Reform Party]] | ||
== Language == | == Language == | ||
* [[Er (Cyrillic)]] (Р р), a letter of the Cyrillic alphabet | |||
* [[Er (cuneiform)]], a sign in cuneiform writing | |||
* "er", a [[Filler (linguistics)|filler word]] in English | |||
* Suffix -er in English: | |||
** added to adjectives or adverbs to form a [[comparative]] (e.g., ''fast'' to ''faster'') | |||
** added to a noun to indicate resident of, as in ''[[New Yorker (disambiguation)|New Yorker]]'' | |||
** added to a verb to make it an [[agent noun]] (e.g., ''cut'' to ''cutter'') | |||
** [[Oxford "-er"]], used to form words like ''rugger'' and ''footer'' | |||
* [[R-colored vowel]], usually written as "''er''" in English | |||
* [[Erhua]], adds ''er'' sound to syllables in spoken Mandarin Chinese | |||
* [[Er ( | == People == | ||
* [[Er | * [[Er (biblical person)]], the eldest son of Judah in the book of Genesis | ||
* [[Nie Er]] (1912–1935), Chinese composer | |||
* | * [[Elliot Rodger]] (1991–2014), British-American mass murderer | ||
* | * ER, a [[royal cypher]] representing a monarch whose name begins with E | ||
== Science and technology == | == Science and technology == | ||
=== Biology and medicine === | === Biology and medicine === | ||
* [[Emergency room]], or emergency department, a medical facility | |||
* [[Emergency room]], or emergency department, | |||
* [[Endoplasmic reticulum]], a type of organelle in cell biology | * [[Endoplasmic reticulum]], a type of organelle in cell biology | ||
* [[Er blood group system]] | * [[Er blood group system]] | ||
* [[Equine exertional rhabdomyolysis]], | * [[Equine exertional rhabdomyolysis]], in horses | ||
* [[Estrogen receptor]], a type of protein molecule | * [[Estrogen receptor]], a type of protein molecule | ||
* [[Extraction ratio]], | * [[Extraction ratio]], in renal physiology | ||
=== Chemistry and physics === | === Chemistry and physics === | ||
* <math>\varepsilon_r</math>, [[relative permittivity]] | |||
* <math>\ | * [[Electrorheological fluid]], suspensions of non-conducting but electrically active particles | ||
* [[Electrorheological | * [[Enantiomeric ratio]], in chemistry | ||
* [[Enantiomeric ratio]], | |||
* [[Erbium]], symbol Er, a chemical element | * [[Erbium]], symbol Er, a chemical element | ||
* [[Einstein-Rosen bridge]] | * [[Einstein-Rosen bridge]], or ER bridge, relativistic wormholes | ||
=== Computing === | === Computing === | ||
* [[.er]], country code top-level domain for Eritrea | |||
* [[.er]], country code top-level domain | |||
* [[Entity–relationship model]], a conceptual representation of data | * [[Entity–relationship model]], a conceptual representation of data | ||
* Error Resilience, an audio coding method used in [[MPEG-4 Part 3]] | * Error Resilience, an audio coding method used in [[MPEG-4 Part 3]] | ||
=== Engineering === | |||
* [[Engine room]], a compartment of a ship where the machinery for marine propulsion is located. | |||
== Other uses == | == Other uses == | ||
* [[Eritrea]], ISO 3166-2 country code ER | |||
* [[Eritrea]] | |||
* [[English Reports]] of the English Courts from 1220 to 1866 | * [[English Reports]] of the English Courts from 1220 to 1866 | ||
== See also == | == See also == | ||
* {{in title|plural=yes}} | * {{in title|plural=yes}} | ||
* {{in title|e-r}} | * {{in title|e-r}} | ||
* {{lookfrom}} | * {{lookfrom}} | ||
* {{lookfrom|er}} | * {{lookfrom|er}} | ||
* [[ | * [[ERS (disambiguation)]] | ||
* [[ | * [[Err (disambiguation)]] | ||
* [[Ur (disambiguation)]] | * [[Ur (disambiguation)]] | ||
{{Disambiguation | {{Disambiguation}} | ||
Latest revision as of 18:06, 4 November 2025
ER or Er may refer to:
<templatestyles src="Template:TOC_right/styles.css" />
Arts, entertainment and media
- ER (TV series), a 1994–2009 American medical drama series
- E/R, a 1984–1985 American TV sitcom
- Er, a character in Plato's Myth of Er
- Er, a 2005 album by Nils Petter Molvær
- "ER" (song), a 2012 song by Kanjani Eight
- "ER", a song by Royce da 5'9" featuring Kid Vishis from the 2011 album Success Is Certain
- Chico Enterprise-Record, the daily newspaper of Chico, California, US
Businesses and organizations
- Astar Air Cargo, an American cargo airline, IATA designator ER
- Eastern Railway zone, in India
- Estonian Reform Party
Language
- Er (Cyrillic) (Р р), a letter of the Cyrillic alphabet
- Er (cuneiform), a sign in cuneiform writing
- "er", a filler word in English
- Suffix -er in English:
- added to adjectives or adverbs to form a comparative (e.g., fast to faster)
- added to a noun to indicate resident of, as in New Yorker
- added to a verb to make it an agent noun (e.g., cut to cutter)
- Oxford "-er", used to form words like rugger and footer
- R-colored vowel, usually written as "er" in English
- Erhua, adds er sound to syllables in spoken Mandarin Chinese
People
- Er (biblical person), the eldest son of Judah in the book of Genesis
- Nie Er (1912–1935), Chinese composer
- Elliot Rodger (1991–2014), British-American mass murderer
- ER, a royal cypher representing a monarch whose name begins with E
Science and technology
Biology and medicine
- Emergency room, or emergency department, a medical facility
- Endoplasmic reticulum, a type of organelle in cell biology
- Er blood group system
- Equine exertional rhabdomyolysis, in horses
- Estrogen receptor, a type of protein molecule
- Extraction ratio, in renal physiology
Chemistry and physics
- , relative permittivity
- Electrorheological fluid, suspensions of non-conducting but electrically active particles
- Enantiomeric ratio, in chemistry
- Erbium, symbol Er, a chemical element
- Einstein-Rosen bridge, or ER bridge, relativistic wormholes
Computing
- .er, country code top-level domain for Eritrea
- Entity–relationship model, a conceptual representation of data
- Error Resilience, an audio coding method used in MPEG-4 Part 3
Engineering
- Engine room, a compartment of a ship where the machinery for marine propulsion is located.
Other uses
- Eritrea, ISO 3166-2 country code ER
- English Reports of the English Courts from 1220 to 1866