ac
abbreviation
acre; acres.
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ac
1 Americanabbreviation
Ac
3
American
Symbol, Chemistry.
AC
4
American
abbreviation
Electricity.
A/C
5
American
[ey-see]
/ ˈeɪˈsi /
Also
AC,
or
a/c
abbreviation
A/C
6
American
Or
a/c
ac-
7
American
-ac
8
American
a.c.
9
American
abbreviation
A.C.
10
American
abbreviation
A.C.
11
American
abbreviation
-
Army Corps.
-
Athletic Club.
a.c.
1
British
abbreviation
Ac
2
British
symbol
a/c
3
British
abbreviation
-
account
-
account current
A/C
4
British
abbreviation
AC
5
British
abbreviation
-
alternating current Compare DC
-
ante Christum
-
Air Corps
-
athletic club
-
Companion of the Order of Australia
-
appellation d'origine contrôlée: the highest French wine classification; indicates that the wine meets strict requirements concerning area of production, strength, etc See VDQS vin de pays vin de table
-
Aelodau'r Cynulliad: Member of the Assembly (that is, the National Assembly of Wales)
ac
6
British
abbreviation
AC
Scientific
Etymology
Origin of -ac8
From Latin -acus, from Greek -akos
Origin of a.c.9
From Latin ante cibum
Origin of A.C.10
From Latin ante Christum
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:
Our Welsh language friends can start listening to the big match build-up now by using the Carl ac Alun link above.
From BBC ● Mar. 25, 2024
He was a very well-known, established character ac even before "I Love Lucy."
From Fox News ● Jun. 5, 2021
Comparing not having A/C to 100 years ago when there was no ac is not a fair comparison.
From New York Times ● Aug. 15, 2016
It is also useful to express ac in terms of angular velocity.
From Textbooks ● Aug. 12, 2015
Ngawang Doka replied in clear, sparkling English that carried a hint of a Canadian ac cent.
From "Into Thin Air" by Jon Krakauer
Balcarcel’s attorney, Samuel Simpson V, said Monday that he would be “very surprised” if Balcarcel Ac and Alvarado-Dubon were planning a mass shooting.
From Seattle Times ● Jul. 11, 2022
Balcarcel Ac was not arrested until July 5.
From Seattle Times ● Jul. 8, 2022
Even to copy a relatively short paper, “Proc Nat Ac Sci”—“Proceedings of the National Academy of Sciences”—could take the better part of an hour.
From The New Yorker ● Jan. 6, 2020
Actinium, Ac, is the first member of the fourth transition series, which also includes Rf through Rg.
From Textbooks ● Feb. 14, 2019
Ac drihte ne demeð noman after his biginninge 120 Ac al his lif sal ben teald after his endinge. | f.
From Selections from early Middle English, 1130-1250 Part I: Texts by Joseph Hall
A broken car AC and soaring L.A. summer temperatures sent one writer on a search for cooling remedies and tonics.
From Los Angeles Times ● Sep. 2, 2026
Sunderland will mark their first European campaign since 1973 with a trip to the San Siro after drawing AC Milan in the Europa League.
From BBC ● Aug. 28, 2026
With United's players on the same wavelength, they are able to escape AC Milan's press with Tielemans now on the ball with time and space.
From BBC ● Aug. 19, 2026
Appeared in the August 19, 2026, print edition as 'The Economic Case for European AC'.
From The Wall Street Journal ● Aug. 18, 2026
Not even the AC could calm me down.
From "The Epic Fail of Arturo Zamora" by Pablo Cartaya
To study the process, the researchers developed a mouse model in which they could switch off the lamin A/C gene specifically in adipocytes.
From Science Daily ● Jul. 26, 2026
Appeared in the July 25, 2026, print edition as 'Notable & Quotable: A/C'.
From The Wall Street Journal ● Jul. 24, 2026
The first statement shows a payment was sent to a Barclays account where Reinaldo Avila da Silva is named as "A/C", typically an abbreviation for account.
From BBC ● Feb. 2, 2026
Instead, it is important for neighbors to check on one another, and for city services to provide people with community-oriented resilience centers that offer more than just A/C or water.
From Los Angeles Times ● Aug. 26, 2024
Roy waited inside for a while, but without A/C it was unbearably hot and sticky.
From "Hoot" by Carl Hiaasen
Still, with the prices of many commodities climbing, the companies couldn’t ac- commodate price shocks, so they often wound up hiring banks to hedge their vulnerability to volatile product markets.
From MSNBC ● Jun. 4, 2014
“I suppose the problem at the moment is that we don’t have a one- to-one mapping, because even our best theories aren’t completely ac- curate,” Ladyman said.
From Scientific American ● Jan. 31, 2014
The government has devised civic ac- tion programs to rebuild damaged hamlets, and anti-guerrilla patrols are often accompanied by doctors who bring free medical care to the hill people.
From Time Magazine Archive
Very democratic, proud of being a plain American, she likes people, is always ac- cessible to strangers.
From Time Magazine Archive
NOTE.—The forms ac-, af-, etc., are euphonic variations of ad-, and follow generally the rule that the final consonant of the prefix assimilates to the initial letter of the root.
From New Word-Analysis by William Swinton
NOTE.—The suffix -ac is found only in Latin derivatives of Greek origin.
From New Word-Analysis by William Swinton
A new report finds that about 3% of autos--high- and low-end models--have fungi and bacteria breeding in the moisture that collects on the a.c.
From Time Magazine Archive
It turned out that all electricity here was d.c., conjured up by commanding the electrons in a wire to move in one direction, and completely useless with a.c. motors.
From The Sky Is Falling by Lester Del Rey
In the third century a.c. he composed in Greek a history of his native land, which has perished.
From Myths of Babylonia and Assyria by Donald Alexander Mackenzie
The 60 h.p. has parallel a.c. cylinders, the other two are radial w.c.
From Jane's All the World's Aircraft 1913 by Various
These writings are said to date from about 97 to 150 a.c.
From Frauds and Follies of the Fathers A Review of the Worth of their Testimony to the Four Gospels by Joseph Mazzini Wheeler
Other historical Pasadena figures in the book include the bookseller A.C.
From The Wall Street Journal ● Feb. 27, 2026
Tired of having to scrap their way through the streets of West Compton in the early 1970s, A.C.
From Los Angeles Times ● Feb. 22, 2025
But the filmmaking team is fairly confident it belongs to Irvine, due to the sock found inside the boot being embroidered with the words "A.C. Irvine".
From BBC ● Oct. 11, 2024
In 2022, James and Drake also invested in A.C.
From New York Times ● Mar. 4, 2024
The bulk of the fighting had so far fallen on the 2nd A.C., whose casualties already amounted to 350 officers and 9,200 men.
From The First Seven Divisions Being a Detailed Account of the Fighting from Mons to Ypres by Ernest W. Hamilton
Chris Coucheron-Aamot, a guest at the Sandals resort, wrote on Facebook that the cause of the episode “may have been a fault with the a/c in the unit, causing a toxic coolant leak.”
From Seattle Times ● May 9, 2022
If that power comes from fossil fuels, a/c alone will account for a half-degree Celsius rise in global temperatures.
From The Guardian ● Aug. 11, 2019
Maybe it's possible shutting down subway a/c would make it a few degrees cooler.
From New York Times ● Aug. 21, 2016
Everyone drives huge SUVs, the houses have no insulation, heating on all winter, a/c on all summer, landfills are overflowing, you get punished for reusing shopping bags.
From BBC ● Jul. 10, 2011
If you pay £5 into my a/c at Childs, it will be simplest.
From Letters from Mesopotamia in 1915 and January, 1916, from Robert Palmer, who was killed in the Battle of Um El Hannah, June 21, 1916, aged 27 years by Robert Stafford Arthur Palmer
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
