Which to use
“Cath” is a name and “cay” is a noun - they look or sound alike but fill different roles in a sentence.
- #32,725
- “Cath” frequency rank
- #40,168
- “cay” frequency rank
- 72893
- confusion score
Side-by-Side Comparison
| Feature | Cath | cay |
|---|---|---|
| Definition | A diminutive of the female given name Catherine. | A small, low island largely made of sand or coral. |
Where the eye mixes Cath and cay
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses Cath with cay
These two trip readers on the page rather than in the ear: Cath is /kæθ/ while cay is /kiː/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 72893, derived from the frequency rank of both members and their visual similarity.
Cath is recorded at frequency rank #32,725, classified as aname, pronounced /kæθ/. cay is at rank #40,168, tagged as anoun, pronounced /kiː/.
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 72893, this pair ranks #41,474 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of Cath vs cay
Shared letters: ac. Private to "Cath": ht. Private to "cay": y.
"Cath" · 4 letters · shape CVCC · "cay" · 3 letters · shape CVV
Known mistypes of this pair
- Cath ← acth · cathh · catth · ccath · ctah
Frequently Asked Questions
Is swapping "Cath" for "cay" ever safe?
In ordinary English text, does "Cath" or "cay" show up more?
After this comparison
Eye-level mix-up between "Cath" and "cay" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "Cath" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cay" - compare definitions side by side with the headword page. Word entry
- This pair ranks #41,474 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Cath" and "cay" also get mixed up with nearby pairs, the highest-scored neighbour is "cay vs CGT". 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 #41,474 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.