Interested In or Interested On: What's the Correct Preposition to Use?

Last Updated on
October 17, 2023

Knowing the small differences between phrases like "interested in" and "interested on" can help you speak and write more clearly. Today, we'll look at these two phrases to help you know which one to use and when.

In short:

  • "Interested in" is the correct phrase for showing interest in a subject, topic, or person.
  • "Interested on" is generally considered incorrect in standard English.

Definition of "Interested In": What Does "Interested In" Mean?

"Interested in" is a phrase used to express enthusiasm or curiosity about someone or something.

  • The preposition “in” indicates a state of being engaged or involved with something or someone.

Synonyms of "Interested In"

  • Curious about
  • Keen on

Antonyms of "Interested In"

  • Indifferent to
  • Apathetic about

Similar Terms of "Interested In"

  • Passionate about
  • Fascinated by

Definition of "Interested On": What Does "Interested On" Mean?

"Interested on" is generally considered incorrect in standard English. People might still understand what you mean if you say it, but it's not the accepted way to express interest.

  •  The preposition “on” indicates a position or location on a surface or in contact with something, which does not make sense with the meaning of being interested.

Synonyms of "Interested On"

  • None

Antonyms of "Interested On"

  • None

Similar Terms of "Interested On"

  • None

Pronunciation: How to Pronounce "Interested In" or "Interested On"

Pronouncing these phrases is easy because the words themselves are common. The key is to stress the right parts.

"Interested In": /ˈɪn.trɪs.tɪd ɪn/

"Interested On": /ˈɪn.trɪs.tɪd ɒn/

Usage Tips

Always use "interested in" when you're talking about something that grabs your attention or you want to learn more about. This is the standard usage in both writing and speaking. The phrase "interested on" is rarely, if ever, correct and could confuse your audience. Stick with "interested in" to make sure your message is clear and easily understood.

How to Use "Interested In" or "Interested On" in a Sentence

Let's look at how to use "interested in" and "interested on" in sentences. Remember, "interested on" is generally incorrect, but we'll show you how it's sometimes misused.

Interested In

  1. I am interested in learning how to cook.
  2. She is interested in the new book release.
  3. They are interested in visiting the museum.
  4. We are interested in hearing your opinion.

Interested On

  1. I am interested on this topic. (Incorrect)
  2. They were interested on what happened next. (Incorrect)

Final Advice on "Interested In" or "Interested On"

The phrase "interested in" is the proper way to express enthusiasm or curiosity about something, whereas "interested on" is incorrect. For example, you are interested "in" history or "in" playing sports. You are not interested "on" these things, as "on" implies physical placement on top of something.

  • Use "interested in" for topics, people, or activities that catch your attention.
  • Avoid using "interested on" as it's considered incorrect.

Understanding the difference between these commonly confused words will help you communicate more clearly.

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