Word.ws English Dictionary

quintilliard

quintilliard numeral: a thousand million million million million million: 1 followed by thirty-three zeros, 10³³.

Numeral

quintilliard (plural quintilliards)

  1. (rare) A thousand million million million million million: 1 followed by thirty-three zeros, 10³³.
    • A second computator, taking up the inquiry at the point at which it has been left by the first proposer of the query, has shown that the number of “ascendants” increasing in geometrical ratio with each generation back, the number of forbears computed to the 37th degree, exceeds the total population...1883 December 29, “Stella” (correspondent), “Continental Gossip”, in The Sydney Morning Herald, number 14,276, Sydney, N.S.W., page 6, column 2
    • With the Triple DES implementation of DES, there are 5 100 000 000 000 000 000 000 000 000 000 000 (5.1 quintilliard) or more possible encryption keys that can be used.2000 September 1, Furqan Syed, “Children of DES: A Look at the Advanced Encryption Standard”, in Network Security, →DOI, pages 11–12
    Synonyms:
    a short scale decillion

Synonyms of quintilliard

Forms of quintilliard

pluralquintilliards

Origin of quintilliard

From French quintilliard, equivalent to quint- + -illiard.

Questions about quintilliard

What does quintilliard mean?
Quintilliard means a thousand million million million million million: 1 followed by thirty-three zeros, 10³³.
What part of speech is quintilliard?
Quintilliard is a numeral.

Words near quintilliard in the dictionary

  1. Quintilian
  2. Quintilis
  3. quintilise
  4. quintilised
  5. quintille
  6. quintilliard
  7. quintilliards
  8. quintillion
  9. quintillionaire
  10. quintillionaires
  11. quintillionfold

Source and license

Adapted from Wiktionary: quintilliard (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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