cogwheel
"cogwheel" is a 8-letter English headword indexed on PlainSpell.
The verdict
“cogwheel” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A gear wheel.
| Property | Value |
|---|---|
| Headword | cogwheel |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “cogwheel” sits in English frequency
Rare enough to double-check
cogwheel is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
Zero misspellings are on record for cogwheel in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From cog + wheel. The correct English form is cogwheel, spelled C-O-G-W-H-E-E-L.
Definition
- 1A gear wheel.
- 2Something behaving in a jerky manner similar to a cogwheel, e.g. cogwheel respiration as a side effect of hyperbaric medicine.
Etymology
From cog + wheel.
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
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Using “cogwheel”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-O-G-W-H-E-E-L - 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.