Standard Lemma guide

decillion

num · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Southern-England: Recorded audio is listed in the source snapshot.
  • /dəˈsɪl.i.ən/
  • rhymes with -ɪljən

1

num

Meaning 1

1033.

Definition source: English Wiktionary via Wiktextract

Usage: US

Qualifier: modern British & Australian; short scale; modern British & Australian; short scale

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

num

Meaning 2

1060.

Definition source: English Wiktionary via Wiktextract

Qualifier: dated British & Australian; long scale; dated British & Australian; long scale

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From dec- (“ten”) + -illion. First attested in 1709 in a translation of Johann Sturm’s Mathesis juvenilis by George Vaux, translating Latin mille myriades octavorum numerorum.

Across languages

Translations

23 source translations are retained for this English entry.

  • Armenian: հազար հնգիլիոն (hazar hngilion) — 10<sup>33</sup>
  • Esperanto: kviniliardo — 10<sup>33</sup>
  • Finnish: tuhat kvintiljoonaa — 10<sup>33</sup>
  • Finnish: kvintiljardi — 10<sup>33</sup>
  • German: Quintilliarde — 10<sup>33</sup>
  • German: Quinquilliarde — 10<sup>33</sup>
  • Hungarian: kvintilliárd — 10<sup>33</sup>
  • Icelandic: kvintilljarður — 10<sup>33</sup>
  • Italian: decilione — 10<sup>33</sup>
  • Japanese: 十溝 (jukkō) — 10<sup>33</sup>
  • Malay: desilion — 10<sup>33</sup>
  • Polish: decylion — 10<sup>33</sup>
  • Polish: kwintyliard — 10<sup>33</sup>
  • Russian: дециллион (decillion) — 10<sup>33</sup>
  • Spanish: decillón — 10<sup>33</sup>
  • Spanish: mil quintillones — 10<sup>33</sup>
  • Welsh: dengiliwn — 10<sup>33</sup>
  • Esperanto: dekiliono — 1060 — see also novemdecillion
  • Finnish: dekiljoona — 1060 — see also novemdecillion
  • German: Dezillion — 1060 — see also novemdecillion
  • Italian: decilione — 1060 — see also novemdecillion
  • Polish: decylion — 1060 — see also novemdecillion
  • Spanish: decillón — 1060 — see also novemdecillion