Common mistake coarse (course)

Common Grammar Mistake: Coarse (Course)

One of the most commonly confused words in the English language is "coarse" and "course". These two words, despite having similar spellings, have completely different meanings and cannot be used interchangeably. In this article, we will explore the correct usage of each word and help you avoid this common grammar mistake.


The word "coarse" is an adjective that describes something rough, uneven, or lacking in refinement. It can be used to describe the texture of something or the quality of a person's behavior. Here are a few examples of the correct usage of "coarse" in sentences:

  • The coarse sandpaper made it difficult to smooth out the edges.
  • Her coarse language shocked the audience.


The word "course" has multiple meanings and can be used as a noun or a verb. Here are a few different ways it can be correctly used:

  • Noun: A route, path, or direction taken.
  • She decided to take a different course and pursue a career in writing.
  • Verb: To move or flow in a specified direction.
  • The river courses through the valley, creating a beautiful landscape.
  • Noun: A series of lessons or lectures in a particular subject.
  • He signed up for a photography course to improve his skills.

It is crucial to be mindful of the context and meaning when choosing between "coarse" and "course". Confusing these words can lead to misunderstandings and miscommunication.

Remember, if you need assistance with your grammar, you can use the Linguix grammar checker. It is an excellent tool for proofreading and correcting grammar mistakes.

coarse (course) mistake examples

  • Incorrect:
    A coarse after action

    A course after action

  • Incorrect:
    To coarse after hares

    To course after hares

  • Incorrect:
    In the syllabus for an Applied Mathematics coarse, students are told to write their problem sets individually.

    In the syllabus for an Applied Mathematics course, students are told to write their problem sets individually.

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