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:
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 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
Nare noman elles dead ne sic ne unsele Ac mihte libbe afremo ablisse ⁊ an hale. |
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
Goretzka was in concrete talks with AC Milan at one point, but that fell apart.
From BBC ● Aug. 27, 2026
Until last weekend's defeat by AC Milan in Poland, no-one was questioning the fitness of Carrick's squad and six of his starting line-up returned to training on 9 July.
From BBC ● Aug. 22, 2026
Productivity plummets when workers without AC suffer from heat stress.
From The Wall Street Journal ● Aug. 18, 2026
“I thought you were cold. They’re blasting the AC in here.”
From "Pride" by Ibi Zoboi
Older APOE2 knock-in mice had smaller nucleoli, higher levels of the nuclear scaffolding protein Lamin A/C, and better-preserved heterochromatin in the hippocampus than mice carrying APOE3 or APOE4.
From Science Daily ● Jul. 24, 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
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
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
Very democratic, proud of being a plain American, she likes people, is always ac- cessible to strangers.
From Time Magazine Archive
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
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 Joseph Mazzini Wheeler
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 A. Frederick (Archie Frederick) Collins
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 Donald Alexander Mackenzie
Other historical Pasadena figures in the book include the bookseller A.C.
From The Wall Street Journal ● Feb. 27, 2026
And Hoecht, along with defensive line coach Giff Smith and assistant A.C.
From Los Angeles Times ● Nov. 22, 2024
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
By 10 a.m. on the 31st the transfer of positions was complete, and Sir Horace and his gallant but war-worn A.C. withdrew to Hazebrouck.
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
But then, not all of those 90% of American households with a/c are affluent – not even close.
From The Guardian ● Aug. 11, 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
To restore cheerfulness, the two faced each other at the sloping desks, and Madame dictated whilst Gertie took bills, headed "Hilbert's Military Accoutrement Manufacturers," and wrote the words, "To a/c rendered."
From Love at Paddington by W. Pett (William Pett) Ridge
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.
