Word.ws English Dictionary

millillion

millillion numeral: 10³⁰⁰³.

Numeral

millillion (plural millillions)

  1. (US, modern British & Australian, short scale) 10³⁰⁰³.
    • It must have been an older brother in the other bed, for I learned about a million, and went on to consider a billion and a trillion and a quadrillion, and so on to a “millillion,” and even that was not the end: the frightening notion of infinity came next.1996, Alfred Mitchell Bingham, The Tiffany Fortune: And Other Chronicles of a Connecticut Family, page 233
    • However, by the time we reach 10³⁶, an undecillion, things are getting rather difficult. We finally run out shortly after 10³⁰⁰³, which would be a millillion.2007, Michael A. B. Deakin, Name of the Number, page 21
    Synonyms:
    millinillion

Synonyms of millillion

Forms of millillion

pluralmillillions

Origin of millillion

From milli- + -illion.

Words that rhyme with millillion

48 more rhymesFewer rhymes

Questions about millillion

What does millillion mean?
Millillion means 10³⁰⁰³.
What part of speech is millillion?
Millillion is a numeral.

Words near millillion in the dictionary

  1. millile
  2. milliliter
  3. milliliters
  4. millilitre
  5. millilitres
  6. millillion
  7. millillions
  8. millilumen
  9. millilumens
  10. millilux
  11. millim

Source and license

Adapted from Wiktionary: millillion (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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