Which to use
“cob” is a noun and “con” is a verb - they look or sound alike but fill different roles in a sentence.
- #27,404
- “cob” frequency rank
- #4,434
- “con” frequency rank
- 31838
- confusion score
Side-by-Side Comparison
| Feature | cob | con |
|---|---|---|
| Definition | A corncob. | To study or examine carefully, especially in order to gain knowledge of; to learn, or learn by heart. |
Where the eye mixes cob and con
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses cob with con
These two trip readers on the page rather than in the ear: cob is /kɑb/ while con is /kɒn/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - b in “cob” becomes n in “con”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 31838, derived from the frequency rank of both members and their visual similarity.
cob is recorded at frequency rank #27,404, classified as anoun, pronounced /kɑb/. con is at rank #4,434, tagged as averb, pronounced /kɒn/.
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 31838, this pair ranks #342,797 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cob vs con
Shared letters: co. Private to "cob": b. Private to "con": n.
"cob" · 3 letters · shape CVC · "con" · 3 letters · shape CVC
Frequently Asked Questions
Do "cob" and "con" mean the same thing in a sentence?
In ordinary English text, does "cob" or "con" show up more?
What to do next
Eye-level mix-up between "cob" and "con" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "cob" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "con" - compare definitions side by side with the headword page. Word entry
- This pair ranks #342,797 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cob" and "con" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs cob". Nearby pair
Confusion rank #342,797 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.