# AC
## Translingual
### Symbol

AC
* (international standards) Exceptionally reserved ISO 3166-1 alpha-2 country code for Ascension Island.
    Synonym: ASC (alpha-3)

#### Usage notes

This is an exceptionally reserved code, included as part of ISO 3166-1 on the request of the Universal Postal Union for the purpose of assigning a stamp issuing area, and is not endorsed for general use by the ISO outside of that purpose.

## English
### Alternative forms

* (air conditioning) a.c., A/C, a/c
* (alternating current) A.C., a.c., ac
* (army corps, athletic club) A.C.
* (anno Christi, ante Christum) A.C., A. C.
* (ante cibum) a.c.

### Noun

AC (plural ACs)
* (aviation) Initialism of absolute ceiling.
* Initialism of access control.
    Hyponym: RBAC
* (finance) Initialism of account current.
* (anatomy) Initialism of anterior chamber.
* (music, radio) Initialism of adult contemporary (a radio format).
* (biochemistry) Initialism of adenylyl cyclase.
* (medicine) Initialism of adjuvant chemotherapy.
** 2018, Gollins S et al., “A prospective phase II study of pre-operative chemotherapy then short-course radiotherapy for high risk rectal cancer: COPERNICUS”, in British Journal of Cancer‎:Current UK practice, supported by NICE guidance is to complete local pelvic treatment with surgery±pre-operative radiotherapy, before considering systemic adjuvant chemotherapy (AC)
* Initialism of air conditioning.
* Initialism of air corps.
* Initialism of aircraftman.
* (electricity) Initialism of alternating current (often used to indicate an alternating potential rather than a current).
    Coordinate term: DC
    110 V AC
** (electricity, informal, by extension) supply of electric energy via a public electricity grid [c. 1900]
* Initialism of area code.
* Initialism of army corps.
* Initialism of athletic club.
* Initialism of author's correction.
* Initialism of automobile club.
* (US, military) Initialism of Auxiliary Collier (a naval coal transport that travels with the fleet to provide coal for coal-powered warships).
* (set theory) Initialism of axiom of choice.
* (UK, law enforcement) Initialism of assistant commissioner, a police rank used in London's Metropolitan Police.
* (Australia) Companion of the Order of Australia.
* Initialism of aviation cadet.
* (chemistry) Initialism of ammonium chloride.
* (geography) Initialism of autonomous county.
* (roleplaying games) Initialism of armor class.
* (autism, psychology) singular of ACs (“autistics and cousins”).
* (prison) Initialism of administrative custody.
** 1988 February 7, Delana Emery, “Women Prisoners On Hunger Strike For Equal Rights”, in Gay Community News, volume 15, number 29, page 5:We the women in A.C. are on a hunger strike.

#### Derived terms

* AC/DC

#### Translations
### Adjective

AC (not comparable)
* (anatomy, medicine) Initialism of acromioclavicular.
    AC joint; AC separation
* Initialism of air conditioned.
* (religion) Initialism of antichristian.

### Adverb

AC (not comparable)
* Initialism of anno Christi (in the year of Christ).
* Initialism of ante Christum, (before Christ).

#### Synonyms

* (anno Christi): AD (anno Domini)
* (ante Christum): BC (before Christ)

#### Antonyms

* (antonym(s) of “ante Christum”): AD (anno Domini)

### Phrase

AC
* Initialism of all clear (as in button on electronic calculator).
* (medicine) Initialism of ante cibum (before meals).
* (law) Initialism of as charged, as in: guilty as charged, usually a/c.

### Proper noun

AC
* Aceh, an autonomous province of Indonesia.
* Acre, a state of Brazil.
* Initialism of America's Cup (competition yacht sailing match racing regatta).

#### Derived terms

* (America's Cup):
** IACC
** AC72
** AC45
** AC90

### Anagrams

* ca, CA, C.A., ca., &ca., &ca

## Chinese
### Etymology

Borrowed from English account. Doublet of account.

### Pronunciation

* Cantonese (Jyutping): ei$^1$ si$^1$
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: ei$^1$ si$^1$
*** Yale: ēi sī
*** Cantonese Pinyin: ei$^1$ si$^1$
*** Guangdong Romanization: éi$^1$ xi$^1$
*** Sinological IPA : /ei̯⁵⁵ siː⁵⁵/

### Noun

AC
* (Hong Kong Cantonese, computing) account
    冇AC都可以 [Cantonese] ― mou$^5$ AC dou$^1$ ho$^2$ ji$^5$ [Jyutping] ― don't need an account

#### Alternative forms

* ac

#### Related terms

* account

## Italian
### Noun

AC
* anno Christi
* associazione calcio (football/soccer club)
    AC Milan(please add an English translation of this usage example)

### Adjective

AC (invariable)
* avanti Cristo

### Anagrams

* ca, ca'

## Japanese
### Noun

AC(アーケード) • (ākēdo)
* (only in compounds) Abbreviation of アーケード (“arcade, establishment with coin-operated games”).
    AC(アーケード)音( おと)ゲー
       ākēdo otogē
       arcade rhythm game

## Latin
### Alternative forms

* A. C.

### Phrase

AC
* ante Christum
* anno Christi

#### Synonyms

* 1.: a. Chr. n, a. C. n., a. Chr.
* 2.: A. D., A.D., AD; p. Chr. n., p. C. n., p. Chr.

### References

* “AC”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* AC in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.

## Polish
### Pronunciation

* IPA: /aˈt͡sɛ/
* Rhymes: -ɛ
* Syllabification: A‧C

### Noun

AC n (indeclinable)
* Abbreviation of autocasco.

### Further reading

* AC in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
* AC in Polish dictionaries at PWN

## Portuguese
### Proper noun

AC
* Acre (Brazilian state)

## Welsh
### Pronunciation

* (North Wales) IPA: /ˌeɨ̯lɔd kəˈnɨ̞ɬjad/
* (South Wales) IPA: /ˌei̯lɔd kəˈnɪɬjad/

### Noun

AC m (plural ACau)
* (politics) Initialism of Aelod Cynulliad.