Which to use
“cough” and “could” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #7,668
- “cough” frequency rank
- #92
- “could” frequency rank
- 7760
- confusion score
Side-by-Side Comparison
| Feature | cough | could |
|---|---|---|
| Definition | Sometimes followed by up: to force (something) out of the lungs or throat by pushing air from the lungs through the glottis (causing a short, explosive sound), and out through the mouth. | simple past of can |
Where the eye mixes cough and could
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between cough and could
A purely visual mix-up. cough (/kɒf/) and could (/kəd/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 7760, derived from the frequency rank of both members and their visual similarity.
cough is recorded at frequency rank #7,668, classified as averb, pronounced /kɒf/. could is at rank #92, tagged as averb, pronounced /kəd/.
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 7760, this pair ranks #505,702 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cough vs could
Shared letters: cou. Private to "cough": gh. Private to "could": dl.
"cough" · 5 letters · shape CVVCC · "could" · 5 letters · shape CVVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "cough" for "could" ever safe?
Which is more common, "cough" or "could"?
What to do next
Eye-level mix-up between "cough" and "could" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "cough" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "could" - compare definitions side by side with the headword page. Word entry
- This pair ranks #505,702 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cough" and "could" also get mixed up with nearby pairs, the highest-scored neighbour is "cough vs cours". 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 #505,702 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.