jazillion

noun

"jazillion" is a 9-letter English headword indexed on PlainSpell.

The verdict

“jazillion” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An unspecified large number (of).

Corpus desk

Index EN-jazillion · jazillion · English

jazillion · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "J" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for jazillion
PropertyValue
Headwordjazillion
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “jazillion” in English

jazillionranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

jazillion is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "An unspecified large number (of).".

jazillion doesn't appear in our generated misspelling index, a sign its spelling follows regular English conventions. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: See -illion. The correct English form is jazillion, spelled J-A-Z-I-L-L-I-O-N.

Definition

  1. 1
    An unspecified large number (of).

Recorded use

Wiktionary examples

These source excerpts show how jazillion appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Why hadn't she thought about this? He was professor. Of course he'd have a jazillion books...and there were, floor to ceiling, all the way around the room. Crammed in together. Stacked on the floor in places. Stacked on tables. She'd thought the Glass House was a reader's paradise, but this...
  2. While I've gazed at the sky from my sleeping bag on isolated mountaintops in Montana and southern beaches of Mexico and seen a jazillion stars basking in the peace of the evening, only in Rishikesh do the jazillion merge upon another bajillion jazillion and seem to lay overhead thick as glittering ceiling tiles.

Etymology

See -illion.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "jazillion"?
"jazillion" is spelled J-A-Z-I-L-L-I-O-N.
What does "jazillion" mean?
As a noun, "jazillion" means: An unspecified large number (of).
What is the origin of the word "jazillion"?
See -illion. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list