Which to use
“Cath” and “Cathy” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #32,725
- “Cath” frequency rank
- #14,084
- “Cathy” frequency rank
- 46809
- confusion score
Side-by-Side Comparison
| Feature | Cath | Cathy |
|---|---|---|
| Definition | A diminutive of the female given name Catherine. | A diminutive of the female given name Catherine and of its variant forms, also used as a formal given name in the 20th century. |
Where the eye mixes Cath and Cathy
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Cath runs 4 letters (CVCC) against Cathy's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses Cath with Cathy
A purely visual mix-up. Cath (/kæθ/) and Cathy (/ˈkæθi/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “Cath” sits inside “Cathy”. Our composite confusion score for this pair is 46809, 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/. Cathy is at rank #14,084, tagged as aname, pronounced /ˈkæθi/.
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 46809, this pair ranks #208,264 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Cath vs Cathy
Shared letters: acht. Private to "Cath": -. Private to "Cathy": y.
"Cath" · 4 letters · shape CVCC · "Cathy" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "Cath" and "Cathy" be used interchangeably?
In ordinary English text, does "Cath" or "Cathy" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "Cath" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Cathy" - compare definitions side by side with the headword page. Word entry
- This pair ranks #208,264 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Cath" and "Cathy" also get mixed up with nearby pairs, the highest-scored neighbour is "Cath 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 #208,264 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.