Which to use
“cuck” and “cuckoo” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #43,586
- “cuck” frequency rank
- #24,132
- “cuckoo” frequency rank
- 67718
- confusion score
Side-by-Side Comparison
| Feature | cuck | cuckoo |
|---|---|---|
| Definition | A cuckold or cuckquean. | Any of various birds, of the family Cuculidae within the order Cuculiformes, famous for laying its eggs in the nests of other species; but especially a common cuckoo (Cuculus canorus), that has a characteristic two-note call. |
Where the eye mixes cuck and cuckoo
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between cuck and cuckoo
A purely visual mix-up. cuck (/kʌk/) and cuckoo (/ˈkʊkuː/) 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 2 extra letter(s) - “cuck” sits inside “cuckoo”. Our composite confusion score for this pair is 67718, derived from the frequency rank of both members and their visual similarity.
cuck is recorded at frequency rank #43,586, classified as anoun, pronounced /kʌk/. cuckoo is at rank #24,132, tagged as anoun, pronounced /ˈkʊkuː/.
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 67718, this pair ranks #62,069 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of cuck vs cuckoo
Shared letters: cku. Private to "cuck": -. Private to "cuckoo": o.
"cuck" · 4 letters · shape CVCC · "cuckoo" · 6 letters · shape CVCCVV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "cuck" for "cuckoo" ever safe?
Which is more common, "cuck" or "cuckoo"?
After this comparison
Eye-level mix-up between "cuck" and "cuckoo" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "cuck" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cuckoo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #62,069 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cuck" and "cuckoo" also get mixed up with nearby pairs, the highest-scored neighbour is "cuck vs cuny". 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 #62,069 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.