Which to use
“cobb” is a noun and “coos” is a verb - they look or sound alike but fill different roles in a sentence.
- #14,922
- “cobb” frequency rank
- #39,755
- “coos” frequency rank
- 54677
- confusion score
Side-by-Side Comparison
| Feature | cobb | coos |
|---|---|---|
| Definition | A sea-cob or gull. | third-person singular simple present indicative of coo |
Where the eye mixes cobb and coos
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. cobb (CVCC) and coos (CVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses cobb with coos
These two trip readers on the page rather than in the ear: cobb is /kɒb/ while coos is /kuːz/. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 54677, derived from the frequency rank of both members and their visual similarity.
cobb is recorded at frequency rank #14,922, classified as anoun, pronounced /kɒb/. coos is at rank #39,755, tagged as averb, pronounced /kuːz/.
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 54677, this pair ranks #139,242 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cobb vs coos
Shared letters: co. Private to "cobb": b. Private to "coos": s.
"cobb" · 4 letters · shape CVCC · "coos" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Can "cobb" and "coos" be used interchangeably?
In ordinary English text, does "cobb" or "coos" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "cobb" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "coos" - compare definitions side by side with the headword page. Word entry
- This pair ranks #139,242 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cobb" and "coos" also get mixed up with nearby pairs, the highest-scored neighbour is "coms vs coos". 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 #139,242 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.