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.
AC
1
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
2
British
abbreviation
A/C
3
British
abbreviation
a.c.
4
British
abbreviation
a/c
5
British
abbreviation
-
account
-
account current
Ac
6
British
symbol
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:
He told her to "put 120£ in this ac… please thank u baby".
From BBC ● Jul. 13, 2026
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
Centripetal force Fc is always perpendicular to the path and pointing to the center of curvature, because ac is perpendicular to the velocity and pointing to the center of curvature.
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
An agent from Homeland Security Investigations determined that Balcarcel Ac has had two previous deportations, the affidavit states.
From Seattle Times ● Jul. 11, 2022
The affidavit was used to obtain a warrant to search a home in Richmond where Balcarcel Ac lived with a second man who was also arrested in connection with the alleged plot, Julio Alvarado-Dubon, 52.
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 wite ge ��t n�n man ne m�g fullice embe God sprecan, �onne we fur�on �a gesceafta �e he gesceop ne magon asmeagan, ne areccan.
From The Homilies of the Anglo-Saxon Church Containing the Sermones Catholici, or Homilies of ?lfric, in the Original Anglo-Saxon, with an English Version. Volume I. by Aelfric, Abbot of Eynsham
Prisons commissioner media spokesman AC Gajanayake said steps had been taken to transfer inmates to other prisons.
From BBC ● Jul. 6, 2026
After driving so many years without AC, Reyez says he is surprised how much even a few minutes at a time keeps fatigue away.
From The Wall Street Journal ● Jul. 3, 2026
“The AC changed the trajectory of the game,” he says.
From The Wall Street Journal ● Jul. 3, 2026
"It was 42-45 degrees in India when we left but everywhere there is AC," said Rajasekhar, on a two-week trip to Europe with his wife and their two teenage children.
From Barron's ● Jun. 30, 2026
Unlikely to win the battle on its merits, Edison devoted considerable resources to trying to discredit AC in the realm of public relations: AC, he and his supporters asserted, was much more lethal than DC.
From "Newjack: Guarding Sing Sing" by Ted Conover
Ferrari reveals its new EV, the UN shares an alternative metric to GDP, and Europe won’t embrace A/C despite deadly heatwaves.
From Slate ● May 30, 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
You’re cruising down the 101 Freeway in 2050, A/C cranking and music blaring, when you spot a relic from another era: a late 2020s crossover SUV.
From Los Angeles Times ● Sep. 9, 2024
If what comes out when we look at the A/C circles entails the representation of the form of the conclusion, BOOM, the argument is valid.
From Salon ● Jul. 29, 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
She is all that is artistic without being vulgar and is the one ac- tress today who can wink without being suggestive.
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
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 Wheeler, Joseph Mazzini
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 Del Rey, Lester
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 Mackenzie, Donald Alexander
Power.—A transformer for stepping down a commercial alternating current for lighting and heating the filament and for stepping up the commercial a.c., for charging the plate of a vacuum tube oscillator.
From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)
Other historical Pasadena figures in the book include the bookseller A.C.
From The Wall Street Journal ● Feb. 27, 2026
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
The company was born in the garage of A.C.
From Seattle Times ● Apr. 22, 2024
Behind the wheel of the Bronco was Simpson’s boyhood friend and former NFL colleague A.C.
From Los Angeles Times ● Apr. 11, 2024
Pending the arrival of the French, Sir Horace was ordered by the C. in C. to send up to their assistance every available man from the 2nd A.C., which was recouping at Pradelles.
From The First Seven Divisions Being a Detailed Account of the Fighting from Mons to Ypres by Hamilton, Ernest W.
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
But then, not all of those 90% of American households with a/c are affluent – not even close.
From The Guardian ● Aug. 11, 2019
Not a single prison should get a/c before all the schools in our nation have a/c.
From New York Times ● Aug. 20, 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
Was two hours late getting in to Chicago on a/c freight wreck and missed seeing Kuhner his sister's daughter gets married and Kuhner goes to the wedding.
From Potash & Perlmutter Their Copartnership Ventures and Adventures by Glass, Montague
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.
