Which to use
“rotary” is an adjective and “rotors” is a noun - they look or sound alike but fill different roles in a sentence.
- #12,853
- “rotary” frequency rank
- #32,571
- “rotors” frequency rank
- 45424
- confusion score
Side-by-Side Comparison
| Feature | rotary | rotors |
|---|---|---|
| Definition | Capable of rotation. | plural of rotor |
Where the eye mixes rotary and rotors
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses rotary with rotors
These two trip readers on the page rather than in the ear: rotary is /ˈɹəʊ.tə.ɹi/ while rotors is /ˈɹoʊtɚz/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 45424, derived from the frequency rank of both members and their visual similarity.
rotary is recorded at frequency rank #12,853, classified as anadj, pronounced /ˈɹəʊ.tə.ɹi/. rotors is at rank #32,571, tagged as anoun, pronounced /ˈɹoʊtɚz/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 45424, this pair ranks #221,387 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rotary vs rotors
Shared letters: ort. Private to "rotary": ay. Private to "rotors": s.
"rotary" · 6 letters · shape CVCVCV · "rotors" · 6 letters · shape CVCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "rotary" for "rotors" ever safe?
Which is more common, "rotary" or "rotors"?
Useful next steps
Eye-level mix-up between "rotary" and "rotors" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "rotary" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rotors" - compare definitions side by side with the headword page. Word entry
- This pair ranks #221,387 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "rotary" and "rotors" also get mixed up with nearby pairs, the highest-scored neighbour is "rooks vs rotors". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #221,387 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.