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 | Use |
|---|---|
| rough / not fine | coarse |
| rude / offensive | coarse |
| route / direction / development | course |
| class / plan of study | course |
| part of a meal | course |
Because they are homophones, choose by meaning and word class.
Quick tests
Rough-or-route test
Could you substitute “rough/crude,” or “route/class/sequence”?
If yes: Rough/crude → coarse. Route/class/sequence → course.
If no: Check the relevant dictionary sense.
Caveat: Pronunciation does not reliably distinguish the pair.
Examples
The fabric feels coarse.
Coarse describes rough texture.
She enrolled in a writing course.
Course means a set of classes or plan of study.
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