ＣＡ

also: シーエー

Freq.FrequencyTop 10,000

Meanings

1

cabin attendant; flight attendant

Abbreviation of キャビンアテンダント; used in airline contexts.

See also: キャビンアテンダント

ＣＡの仕し事ごとは乗じょう客きゃくの安あん全ぜんを守まもることです。
A CA's job is to ensure passenger safety.

2

Certification Authority; CA

Abbreviation used in computing and information security; refers to an entity that issues digital certificates.

See also: 認証局 (にんしょうきょく)

このサイトの証しょう明めい書しょは信しん頼らいできるＣＡによって発はっ行こうされています。
This site's certificate was issued by a trusted CA.

3

carbohydrate antigen

Medical abbreviation; used in laboratory tests and oncology.

ＣＡは糖とう鎖さ抗こう原げんを表あらわす略りゃく語ごです。
CA is an abbreviation for carbohydrate antigen.

4

chronological age

Abbreviation used in developmental psychology and gerontology to distinguish from mental or biological age.

ＣＡと精せい神しん年ねん齢れいの差さを評ひょう価かする。
Evaluate the difference between CA and mental age.

See all 12 example sentences ›

Usage patterns

〈人ひと〉はＣＡになるはしーえーになるfor someone to become a flight attendant
彼かの女じょは大だい学がくを卒そつ業ぎょうしてＣＡになった。
She graduated from university and became a flight attendant.
〈人ひと〉はＣＡとして働くはしーえーとしてはたらくto work as a flight attendant
兄あには航こう空くう会がい社しゃでＣＡとして働はたらいている。
My brother works as a flight attendant at an airline.

Related words

キャビンアテンダント sense 1
ＣＡ is the shortened abbreviation used in casual speech, while キャビンアテンダント is the full, more formal Japanese term for the same job.
認にん証しょう局きょく sense 2
認証局 is the native Japanese term for a Certification Authority, while ＣＡ is the English-derived abbreviation used in technical contexts.
客きゃく室しつ乗じょう務む員いん sense 1
客室乗務員 is the official, formal Japanese title for flight crew, whereas ＣＡ is the everyday abbreviated term.

Counted with

名めいN2
Used when counting people in formal or service contexts.

Etymology

Abbreviation derived from English initialisms: Cabin Attendant, Certification Authority, Carbohydrate Antigen, Chronological Age. The reading シー・エー reflects the English letter names.