ac

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abbreviation

acre; acres.

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The rainy weather could not ________ my elated spirits on my graduation day.

affect

effect

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Other definitions for ac (2 of 11)

Ac¹

abbreviation Chemistry.

acetate.

acetyl.

Other definitions for ac (3 of 11)

Ac²

Symbol, Chemistry.

actinium.

Other definitions for ac (4 of 11)

abbreviation Electricity.

alternating current.

Other definitions for ac (5 of 11)

ac-

variant of ad- before c and qu: accede; acquire.

Other definitions for ac (6 of 11)

-ac

variant of -ic after Greek noun stems ending in i:cardiac; maniac.

Origin of -ac

From Latin -acus, from Greek -akos

Other definitions for ac (7 of 11)

a.c.

abbreviation

(in prescriptions) before meals.

Origin of a.c.

From Latin ante cibum

Other definitions for ac (8 of 11)

A/C¹

or a/c

[ ey-see ]

/ ˈeɪˈsi /

abbreviation, noun

air conditioning.

Also AC, A.C., a.c.

Other definitions for ac (9 of 11)

A/C²

or a/c

abbreviation Bookkeeping.

account.

account current.

Other definitions for ac (10 of 11)

A.C.¹

abbreviation

before Christ.

Origin of A.C.

From Latin ante Christum

Other definitions for ac (11 of 11)

A.C.²

abbreviation

Army Corps.

Athletic Club.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use ac in a sentence

The conference room suddenly felt very warm, and I wondered if the AC had gone out.
I Shot Bin Laden|Elliot Ackerman|November 16, 2014|DAILY BEAST
Cras rhoncus, massa ac mollis convallis, dui mauris porta nulla, in fringilla tortor orci sit amet est.
Test Article|CNN|October 31, 2014|DAILY BEAST
Ghanaian soccer player Michael Essien, who plays for AC Milan, has been the subject of what borders on fear mongering.
Europe’s Hidden Ebola Cases|Barbie Latza Nadeau|October 15, 2014|DAILY BEAST
Well, it was based on an amalgam of bands—Black Sabbath, AC/DC, Motley Crue, Judas Priest, and Van Halen.
Rob Reiner on the State of Romcoms, ‘The Princess Bride’s’ Alternate Ending, and the Red Viper|Marlow Stern|July 27, 2014|DAILY BEAST

I said to the guy, “Why do they have to turn on the AC so high.”
Jamaica, We Have a Dogsled Team|Allen St. John|March 25, 2014|DAILY BEAST
Annuit vero ac propemodum sese iam Nortmannum pronuntiat; nam Gallos fer omnes Nortmannos appellitant.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Et reliqua sunt huic cert habitationi ac nostr professioni, hoc est, paupertati 90 csentanea.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Quod san mirum est in hominibus, qui lege ac magistratu carent.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Tuguriola sua vbiuis facil ac raptim sudibus ramific dificant, & 80 aut cortice aut pellibus aut eti tegete ctegunt.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Et astiterunt frequenter Barbari magno semper silentio ac reuerenti.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various

British Dictionary definitions for ac (1 of 6)

the internet domain name for

Ascension Island

British Dictionary definitions for ac (2 of 6)

the chemical symbol for

actinium

British Dictionary definitions for ac (3 of 6)

abbreviation for

alternating currentCompare 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, etcSee VDQS, vin de pays, vin de table

Aelodau'r Cynulliad: Member of the Assembly (that is, the National Assembly of Wales)

Word Origin for AC

(for sense 2) Latin: before Christ

British Dictionary definitions for ac (4 of 6)

a.c.

/ obsolete /

abbreviation for

(in prescriptions) ante cibum

Word Origin for a.c.

Latin: before meals

British Dictionary definitions for ac (5 of 6)

a/c

/ accounting /

abbreviation for

account

account current

British Dictionary definitions for ac (6 of 6)

A/C

abbreviation for

(in Canada) Air Commodore

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ac (1 of 3)

abbr.

ante cibum (before a meal)

Medical definitions for ac (2 of 3)

The symbol for the elementactinium

Medical definitions for ac (3 of 3)

ac-

pref.

Variant ofad-

Scientific definitions for ac (1 of 2)

The symbol for actinium.

Scientific definitions for ac (2 of 2)

Abbreviation of alternating current

ac

Other definitions for ac (2 of 11)

Other definitions for ac (3 of 11)

Other definitions for ac (4 of 11)

Other definitions for ac (5 of 11)

Other definitions for ac (6 of 11)

Origin of -ac

Other definitions for ac (7 of 11)

Origin of a.c.

Other definitions for ac (8 of 11)

or a/c

Other definitions for ac (9 of 11)

or a/c

Other definitions for ac (10 of 11)

Origin of A.C.

Other definitions for ac (11 of 11)

Words related to ac

How to use ac in a sentence

British Dictionary definitions for ac (1 of 6)

British Dictionary definitions for ac (2 of 6)

British Dictionary definitions for ac (3 of 6)

Word Origin for AC

British Dictionary definitions for ac (4 of 6)

Word Origin for a.c.

British Dictionary definitions for ac (5 of 6)

British Dictionary definitions for ac (6 of 6)

Medical definitions for ac (1 of 3)

Medical definitions for ac (2 of 3)

Medical definitions for ac (3 of 3)

Scientific definitions for ac (1 of 2)

Scientific definitions for ac (2 of 2)