all at once
/ˌɔːl ət ˈwʌn(t)s/
"all-at-once" is a 9-letter English headword indexed on PlainSpell.
The verdict
“all at once” is uncommon English (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 11
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Unexpectedly; without warning; all of a sudden.
Corpus desk
Index EN-all-at-once · all at once · English
all at once · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 11 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "A" 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 | all at once |
| Language | English |
| Part of speech | Adverb |
| IPA | /ˌɔːl ət ˈwʌn(t)s/ |
| Letters | 11 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “all at once” sits in English frequency
Rare enough to double-check
all at once is uncommon English outside the top frequency list, classed as anadverb, transcribed /ˌɔːl ət ˈwʌn(t)s/. Rarity is why readers land here mid-draft. 2 senses are on record.
We couldn't generate a plausible misspelling set for all at once, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.
Wiktionary doesn't record an etymology for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is all at once, spelled A-L-L- -A-T- -O-N-C-E.
Definition
- 1Unexpectedly; without warning; all of a sudden.
- 2Used other than figuratively or idiomatically: All at the same time; all together.
Recorded use
Wiktionary examplesThese source excerpts show how all at once appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
When all at once I saw a crowd, / A host, of golden daffodils
I was on my way to the door, but all at once, through the fog in my head, I began to sight one reef that I hadn't paid any attention to afore.
This word in other languages
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
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Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.