trilhão

Portuguese
Portuguese numbers (edit)
 ←  1,000,000 (106) [a], [b] ←  1,000,000,000 (109) 1012 1015  → [a], [b], [c] 1018  → [a], [b]
    Cardinal (Brazil): um trilhão
    Cardinal (everywhere but Brazil): um bilião
    Ordinal (Brazil): trilionésimo
    Ordinal (Portugal): bilionésimo
    Fractional (Brazil): trilionésimo, um trilhão avos
    Fractional (Portugal): bilionésimo
    Fractional (everywhere but Brazil): um bilião avos
Portuguese Wikipedia article on 1012

Etymology

Borrowed from French trillion.

Pronunciation
  • (Brazil) IPA(key): /tɾiˈʎɐ̃w̃/ [tɾiˈʎɐ̃ʊ̯̃]

  • Hyphenation: tri‧lhão

Noun

trilhão m (plural trilhões)

  1. (Brazil, cardinal number) trillion (1012)
    Synonym: (Angola, Portugal) bilião
  2. (Portugal, informal, cardinal number) Synonym of trilião (“1018”)

Usage notes
  • Portuguese-speaking countries follow the traditional long scale, with the exception of Brazil which adopted the short scale used in the UK and US. The number 1012 is expressed as um bilião in African and European Portuguese, but as um trilhão in Brazilian Portuguese.[1]
  • The Angolan Government proscribes the use of long scale.[2]
  • In Portugal, the alternative um trilhão (“one quadrillion, 1018”) is an informal spelling of the preferred and proscribed um trilião.[3]

References
  1. bilião e outros grandes números in FLiP - Dúvida Linguística
  2. Angola padroniza a escrita e a leitura dos grandes números in Ciberdúvidas da Língua Portuguesa
  3. “trilhão” in Dicionário Priberam da Língua Portuguesa.
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