Which to use
“coarse” is an adjective and “courses” is a noun - they look or sound alike but fill different roles in a sentence.
- #16,865
- “coarse” frequency rank
- #3,223
- “courses” frequency rank
- 20088
- confusion score
Side-by-Side Comparison
| Feature | coarse | courses |
|---|---|---|
| Definition | With a rough texture; not smooth. | plural of course |
Where the eye mixes coarse and courses
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between coarse and courses
These two trip readers on the page rather than in the ear: coarse is /kɔːs/ while courses is /ˈkɔːsɪz/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 20088, derived from the frequency rank of both members and their visual similarity.
coarse is recorded at frequency rank #16,865, classified as anadj, pronounced /kɔːs/. courses is at rank #3,223, tagged as anoun, pronounced /ˈkɔːsɪz/.
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 20088, this pair ranks #433,557 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of coarse vs courses
Shared letters: ceors. Private to "coarse": a. Private to "courses": u.
"coarse" · 6 letters · shape CVVCCV · "courses" · 7 letters · shape CVVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "coarse" for "courses" ever safe?
In ordinary English text, does "coarse" or "courses" show up more?
What to do next
Eye-level mix-up between "coarse" and "courses" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "coarse" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "courses" - compare definitions side by side with the headword page. Word entry
- This pair ranks #433,557 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "coarse" and "courses" also get mixed up with nearby pairs, the highest-scored neighbour is "coarse 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 #433,557 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.