A1

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See also: A 1, A-1, A-1+, and a1

Translingual

The relative size of A1 paper.

Etymology

  • (paper size): Specified in ISO 216.

Symbol

A1

  1. (international standards) ISO 216 standard paper size of 594 mm × 841 mm (23.39 in × 33.11 in), with a surface area of 0.5 m2 (5.38 sq ft).
  2. (finance) Long-term bond credit rating by Moody's Investors Service, indicating that a bond is upper-medium grade with low risk of default.

See also

ISO 216/269 paper sizes
A series: 4A0 2A0 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
B series: B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10
C series: C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10

English

Etymology 1

From various rating systems, as that of Lloyd's of London or the condition of insured ships. First attested in 1837.

Alternative forms

Adjective

A1 (not comparable)

  1. (informal) In good health.
  2. (informal) In excellent or top condition.
  3. (of a ship) First-class. (Compare A 2 and A 3, which are inferior grades.)

Etymology 2

Noun

A1 (plural A1s)

  1. Under the International Union of Railways (French: Union internationale des chemins de fer, UIC) classification system, a steam locomotive that has two coupled driving wheels followed by two trailing wheels, with no leading wheels; also called an 0-2-2.

Anagrams

Chinese

Pronunciation

Noun

A1

  1. (Hong Kong Cantonese) front page of a newspaper

Synonyms

Norwegian Bokmål

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Etymology

See the Wikipedia article ISO 216, the international standard on paper sizes.

Pronunciation

  • IPA(key): /ˈɑːeːn/
  • Audio(file)
  • Rhymes: -eːn
  • Hyphenation: A‧1

Noun

A1 (uncountable)

  1. A1 (a standard paper size, defined by ISO 216)

See also

References

Wikious
Boobota
Sagapedia