Coarse vs. Course
“Coarse” is an adjective meaning rough, not finely divided, or rude/offensive. “Course” is usually a noun for a route, sequence, class, meal part, or development, and can also be a verb meaning to flow. In mainstream Cambridge pronunciation, the pair are homophones.
Use “coarse” for rough texture or crude/rude quality. Use “course” for a route, class, sequence, direction, part of a meal, or related noun/verb senses.
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| rough, not fine, or rude/crude in quality | coarse | Use the adjective “coarse.” |
| route, class, sequence, direction, meal part, or related senses | course | Use “course.” |
Quick tests
Meaning test
Could the intended meaning be “rough” or “not fine”?
If yes: Use “coarse.”
If no: If you mean a route, class, sequence, direction, or another documented “course” sense, use “course.”
Caveat: Choose by meaning because mainstream pronunciation does not reliably distinguish the spellings.
Examples
The fabric has a coarse texture.
“Coarse” describes rough texture.
She enrolled in a writing course.
“Course” can mean a class of study.
Sound alone is not a safe test for this pair.
The reviewed pronunciation evidence treats them as homophones in mainstream UK/US pronunciation.
The fabric feels coarse.
Coarse = rough; course = class/route/sequence.
Further guidance
Coarse
Cambridge defines coarse as rough/not smooth or as rude/offensive.
Course
Cambridge lists course for classes, direction, development, sports areas, meal parts, and a formal flow verb.
Homophone
Cambridge gives matching mainstream UK/US pronunciations for the pair, so sound alone cannot choose the spelling.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Coarse — English meaning (opens in a new tab)Cambridge University Press · Meaning and pronunciation for coarse
- Course — English meaning (opens in a new tab)Cambridge University Press · Meanings, word classes, and pronunciation for course