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
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
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 was a very well-known, established character ac even before "I Love Lucy."
From Fox News ● Jun. 5, 2021
The Multiplication Property of Equality—For any numbers a, b, and c, if a = b , then ac = bc .
From Textbooks ● Apr. 22, 2020
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
Ngawang Doka replied in clear, sparkling English that carried a hint of a Canadian ac cent.
From "Into Thin Air" by Jon Krakauer
It stood just ac ross from the cobhoust, a tumbledown shed full of stuff left there in Grandpa Dowdel’s time.
From "A Long Way from Chicago" by Richard Peck
Balcarcel Ac was not arrested until July 5.
From Seattle Times ● Jul. 8, 2022
No attorney is listed on court documents for Balcarcel Ac.
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 we habba� n� micele maran endebyrdnysse ��re Cristes bec gesǽd �onne �is d�g�erlice godspel beh�f�, for trymminge eowres geleafan.
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
If his beloved Inter Milan won the Italian championship and rival AC Milan failed to qualify for the European Champions League, he would go on a religious pilgrimage.
From The Wall Street Journal ● Jul. 4, 2026
“The AC changed the trajectory of the game,” he says.
From The Wall Street Journal ● Jul. 3, 2026
"I just take him on really short walks, and then go back home and put him in the AC, and like, make sure he has water," she told AFP.
From Barron's ● Jul. 2, 2026
"That," said the AC, "seems to be the point. U. N. Owen dealt with cases that the law couldn't touch."
From "And Then There Were None" by Agatha Christie
A team led by Hong Kong researchers recently created an A/C alternative that achieved a cooling power of 1,284W—the first time an elastocaloric device surpassed the 1,000W mark.
From BBC ● May 19, 2025
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
After a series of relentless summer heat waves, her A/C sputtered out and she felt at times as though she was suffocating inside the vehicle, soaked in sweat.
From Los Angeles Times ● Oct. 3, 2023
I much enjoyed the juicy, clearly local heirloom tomatoes, one of the good things about too-hot days, best enjoyed with a friend in a fancyish lounge with drinks and A/C.
From Seattle Times ● Aug. 24, 2023
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
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
And when the drummers, ac- cepting his drink, raised their glasses and said, “Here’s to you,” Charles was delighted.
From "East of Eden" by John Steinbeck
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
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
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
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
Other historical Pasadena figures in the book include the bookseller A.C.
From The Wall Street Journal ● Feb. 27, 2026
His gardening business began by accident in 1979, when he began volunteering at the A.C.
From Los Angeles Times ● May 19, 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
The Hare Krishna movement evolved from a 16th-century Indian tradition, and exploded as a worldwide phenomenon when a charismatic Hindu guru known as A.C.
From New York Times ● May 22, 2024
Regretting that we cannot write you more favorably, but thanking you for bringing this to our attention, believe us to be, "Cordially and sincerely yours, "A.C.
From The Homesteader A Novel by Micheaux, Oscar
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
The a/c is just about coping but I am dreading the operating list this afternoon.
From The Guardian ● Jul. 24, 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
Now the question is, Is this the spirit and meaning of the a/c now furnished?*
From Charles Lever, His Life in His Letters, Vol. I by Downey, Edmund
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.
