umptillion
"umptillion" is a 10-letter English headword indexed on PlainSpell.
The verdict
“umptillion” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An extremely large, unspecified number.
Corpus desk
Index EN-umptillion · umptillion · English
umptillion · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 10 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "U" 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.
| Property | Value |
|---|---|
| Headword | umptillion |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “umptillion” in English
Rare enough to double-check
umptillion is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "An extremely large, unspecified number.".
Zero misspellings are on record for umptillion in our index, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From umpty + -illion. The correct English form is umptillion, spelled U-M-P-T-I-L-L-I-O-N.
Definition
- 1An extremely large, unspecified number.
Recorded use
Wiktionary examplesThese source excerpts show how umptillion appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The cosmos is stranger than I can know: full of change, full of beauty. The rich tapestry of interlocking fields and forces weaves umptillion configurations, and every one is beautiful.
"Sarah tells me you work for a magazine." Rufus studied the living room while my mother studied him. "Why, that must be it, right there?" There were umptillion copies of Her strewn not so casually across the glass face of the coffee table by our couch, so it was hard to tell which one Baylor pointed to.
Etymology
From umpty + -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.