quantum computer
"quantum-computer" is a 15-letter English headword indexed on PlainSpell.
The verdict
“quantum computer” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 16
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A computer that exploits quantum mechanical phenomena to transcend classical time complexity limitations.
| Property | Value |
|---|---|
| Headword | quantum computer |
| Language | English |
| Part of speech | Noun |
| Letters | 16 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “quantum computer” sits in English frequency
Rare enough to double-check
quantum computer is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A computer that exploits quantum mechanical phenomena to transcend classical time complexity limitations.".
Our edit-distance generator produced no likely misspellings for quantum computer, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
This entry's etymology isn't recorded, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is quantum computer, spelled Q-U-A-N-T-U-M- -C-O-M-P-U-T-E-R.
Definition
- 1A computer that exploits quantum mechanical phenomena to transcend classical time complexity limitations.
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.
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Using “quantum computer”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is Q-U-A-N-T-U-M- -C-O-M-P-U-T-E-R - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
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.