Standard Lemma guide

sextillion

num · 3 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /sɛksˈtɪljən/
  • rhymes with -ɪljən
  • US: Recorded audio is listed in the source snapshot.

1

num

Meaning 1

A trillion billion: 1 followed by 21 zeros, 1021.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, UK, US

Qualifier: short scale

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

num

Meaning 2

A million quintillion: 1 followed by 36 zeros, 1036.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, UK, dated

Qualifier: long scale

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the number that is represented as a one followed by 21 zeros

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: large integer

History

Etymology

From Classical Latin sextus (“sixth”) + -illion; originally the sixth power of a million, 1036. Compare slightly earlier quintillion, Middle French sixlion (1484) and French sextillion (1765). First attested in 1689 in John Locke’s An Essay Concerning Human Understanding (see the quotation).

Across languages

Translations

28 source translations are retained for this English entry.

  • Armenian: հազար եռիլիոն (hazar eṙilion) — a trillion billion, 1021 — see also trilliard
  • Dutch: triljard — a trillion billion, 1021 — see also trilliard
  • Esperanto: triiliardo — a trillion billion, 1021 — see also trilliard
  • Finnish: triljardi — a trillion billion, 1021 — see also trilliard
  • French: trilliard — a trillion billion, 1021 — see also trilliard
  • German: Trilliarde — a trillion billion, 1021 — see also trilliard
  • Hungarian: trilliárd — a trillion billion, 1021 — see also trilliard
  • Icelandic: trilljarður — a trillion billion, 1021 — see also trilliard
  • Italian: triliardo — a trillion billion, 1021 — see also trilliard
  • Japanese: 十垓 (jū-gai) — a trillion billion, 1021 — see also trilliard
  • Korean: 십해 (siphae) — a trillion billion, 1021 — see also trilliard
  • Malay: sekstilion — a trillion billion, 1021 — see also trilliard
  • Malayalam: ധൂളി (dhūḷi) — a trillion billion, 1021 — see also trilliard
  • Polish: tryliard — a trillion billion, 1021 — see also trilliard
  • Portuguese: sextilhão — a trillion billion, 1021 — see also trilliard
  • Russian: секстиллио́н (sekstillión) — a trillion billion, 1021 — see also trilliard
  • Spanish: mil trillones — a trillion billion, 1021 — see also trilliard
  • Spanish: sextillón — a trillion billion, 1021 — see also trilliard
  • Turkish: sekstilyon — a trillion billion, 1021 — see also trilliard
  • Welsh: secstiliwn — a trillion billion, 1021 — see also trilliard
  • Dutch: sextiljoen — a million quintillion, 1036 — see also undecillion
  • Esperanto: sesiliono — a million quintillion, 1036 — see also undecillion
  • Finnish: sekstiljoona — a million quintillion, 1036 — see also undecillion
  • French: frantic — a million quintillion, 1036 — see also undecillion
  • French: sextillion — a million quintillion, 1036 — see also undecillion
  • German: Sextillion — a million quintillion, 1036 — see also undecillion
  • Japanese: 一澗 (ikkan) — a million quintillion, 1036 — see also undecillion
  • Spanish: sextillón — a million quintillion, 1036 — see also undecillion