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
A/C
2
British
abbreviation
ac
3
British
abbreviation
AC
4
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
5
British
symbol
a/c
6
British
abbreviation
-
account
-
account current
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
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
No attorney is listed on court documents for Balcarcel Ac.
From Seattle Times ● Jul. 8, 2022
Both men are being held in local jails, Balcarcel Ac in Charlottesville and Alvarado-Dubon in Richmond.
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 þe þe her naueð ibet muchel he haued to bete 135 Maniman seið hwo reche pine þe sal habben ende Ne bidde ich no bet bie ich alesed a domesdai of bende.
From Selections from early Middle English, 1130-1250 Part I: Texts by Hall, Joseph
The pet hospital lost one of two AC units, meaning the facility is able to keep animals in its care and their human clients comfortable.
From Los Angeles Times ● Jul. 22, 2026
But, beyond the concerns about the future of the business and the daunting costs of the AC unit, Griffin emphasized the importance of community during a challenging time.
From Los Angeles Times ● Jul. 22, 2026
The evolution of the 51-year-old, who also played for AC Milan and Paris St-Germain before retiring in 2013, was perhaps best symbolised this summer on Hollywood Boulevard.
From BBC ● Jul. 20, 2026
Chinese exports of AC units to the European Union have increased more than 43% in the first half of 2026 compared to the same period last year, the state-run media reports.
From The Wall Street Journal ● Jul. 19, 2026
It was a warm night for early June, and since the AC in Satan's Hearse hadn't worked in this millennium, the windows were cracked open.
From "An Abundance of Katherines" by John Green
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
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
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
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 Del Rey, Lester
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 Wheeler, Joseph Mazzini
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 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
For Caroline D’Amore, the hook was set when Bloom said he could connect her to A.C.
From Los Angeles Times ● Aug. 28, 2023
Sir Horace was for the moment an A.C. commander without an A.C., the remnants of his six heroic brigades being scattered here and there along the whole front.
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
The a/c is just about coping but I am dreading the operating list this afternoon.
From The Guardian ● Jul. 24, 2019
I used to have an office job where the a/c malfunctioned & management refused to make a repair.
From New York Times ● Aug. 15, 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
Curry wrote asking what price I placed on my right to the books, and I replied demanding a full a/c of all sales up to date.
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.
