Word.ws English Dictionary

quintillionth

/kwɪnˈtɪl.i.ənθ/

quintillionth adjective: the ordinal form of the number one quintillion.

Adjective

quintillionth (not comparable)

  1. The ordinal form of the number one quintillion.

Noun

quintillionth (plural quintillionths)

  1. The person or thing in the quintillionth position.
  2. One of a quintillion equal parts of a whole.

Forms of quintillionth

pluralquintillionths

Origin of quintillionth

From quintillion + -th (ordinal suffix).

Questions about quintillionth

What does quintillionth mean?
Quintillionth means the ordinal form of the number one quintillion.
What part of speech is quintillionth?
Quintillionth can be an adjective or a noun.
How do you pronounce quintillionth?
Quintillionth is pronounced /kwɪnˈtɪl.i.ənθ/.

Words near quintillionth in the dictionary

  1. quintillion
  2. quintillionaire
  3. quintillionaires
  4. quintillionfold
  5. quintillions
  6. quintillionth
  7. quintillionths
  8. quintin
  9. quintina
  10. quintine
  11. quintinite

Source and license

Adapted from Wiktionary: quintillionth (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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Pronunciation audio from Wikimedia Commons, each file under its own free license: En-us-quintillionth.ogg.

Cite this entry: “quintillionth.” Word.ws, https://word.ws/quintillionth. Based on Wiktionary, CC BY-SA 4.0.