ac
abbreviation
acre; acres.
Jump To:
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 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
Figure 10.5 Centripetal acceleration ac occurs as the direction of velocity changes; it is perpendicular to the circular motion.
From Textbooks ● Aug. 12, 2015
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
An agent from Homeland Security Investigations determined that both men are in the U.S. illegally and that Balcarcel Ac has had two previous deportations, the affidavit states.
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
The story of the project is told in a little book, Novissima Ac Perpetua Astronomica..., which Borghesi later published.
From The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35, the Smithsonian Institution United States National Museum Bulletin 240 by Bedini, Silvio A.
She said the onus is on the landlords and owners of these commercial spaces to take action to protect rooftop AC units.
From Los Angeles Times ● Jul. 22, 2026
The loss of the AC is “impacting us greatly,” he added.
From Los Angeles Times ● Jul. 22, 2026
Yet France’s Agency for Ecological Transition says AC ownership rose to 24% of households last year from 18% in 2023.
From The Wall Street Journal ● Jul. 19, 2026
Europeans aren’t big fans of AC, it turns out, but things have gotten so hot that many people are now making the switch.
From Salon ● Jul. 19, 2026
Not even the AC could calm me down.
From "The Epic Fail of Arturo Zamora" by Pablo Cartaya
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
“The A/C here wasn’t cutting it for a really long time,” Shaw said, citing temperatures above 100 degrees.
From Los Angeles Times ● Dec. 6, 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
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
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
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)
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
In 2022, James and Drake also invested in A.C.
From New York Times ● Mar. 4, 2024
The failure of the British left to advance encouraged the Germans to deliver counter-attacks all along the line, especially against the advanced position held by the 1st A.C.
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
During this meeting, Spencer noted some 30 claims which he attributes to Bashir, including Jephson's alleged plots against her: "Jephson - dangerous: money. Left offshore a/c in March 1994".
From BBC ● May 20, 2021
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
People with no a/c had access to open windows and the wind.
From New York Times ● Aug. 15, 2016
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.
