Know of sb Meaning, Examples & How to Use in English

What Does “Know of sb” Mean?

“Know of sb” means to have heard about someone or to be aware that a person exists, even if you do not know them personally.

Introduction

The phrase “know of sb” is commonly used in English to express awareness or recognition of a person without having a close or personal relationship. It is different from “know sb,” which means to be familiar with someone personally. Understanding the “know of sb meaning” helps learners use this phrase correctly when talking about people they have heard about or indirectly know. This expression is useful in both spoken and written English and helps clarify the level of familiarity with someone.

Quick Info Box

  • Phrasal verb: Know of somebody
  • Type: Transitive
  • Level: B1 (Intermediate)
  • Short meaning: To have heard about someone or to be aware of their existence

Structure (Grammar Rules)

“Know of sb” is an inseparable phrasal verb, which means the object (somebody) always follows the entire phrase. You cannot separate “know” and “of.”

Correct pattern: know of + somebody

Incorrect: know somebody of

How to Use “Know of sb”?

Use “know of sb” when you want to say you have heard about someone but do not know them personally. It often appears in conversations about famous people, colleagues, or acquaintances. It helps to show a general awareness rather than a personal relationship.

Examples

Here are some natural sentences using “know of sb” in context:

  • I don’t know her personally, but I know of her work.
  • Do you know of any good doctors in this area?
  • Many people know of the singer, but few have met him.
  • She knows of the new manager, but they haven’t spoken yet.
  • We all know of the famous author, even if we haven’t read his books.

Common Mistakes

People often confuse “know of sb” with “know sb.” Remember, “know of sb” means to be aware of someone, not to have a personal relationship.

  • Incorrect: I know of him very well (if you mean you have a close relationship).
  • Correct: I know him very well.
  • Incorrect: Do you know him of? (wrong word order)
  • Correct: Do you know of him?

Differences / Synonyms

“Know of sb” differs from “know sb” and “hear of sb.”

  • Know sb: To be personally familiar with someone.
  • Know of sb: To have heard about someone, without personal knowledge.
  • Hear of sb: Similar to “know of sb,” but mostly used when you recently found out about someone.

Example: I know of her (I have heard about her). I know her (I am personally familiar with her). I heard of her yesterday (I just found out about her).

Common Collocations

Here are common words used with “know of sb” to express awareness:

  • Know of a person (general awareness)
  • Know of a place (awareness of location)
  • Know of a thing (awareness of an object or concept)
  • Know of a situation (awareness of an event or condition)

Related Phrasal Verbs

Here are related phrasal verbs of know of sb:

Real-life Dialogue

Here is a short conversation using “know of sb”:

Anna: Do you know of Mr. Smith, the new CEO?

John: Yes, I know of him. I heard he worked at a big company before.

Anna: I haven’t met him yet, but people say he’s very experienced.

Practice

Choose the correct option to complete the sentence:

  • I don’t ________ her personally, but I’ve heard a lot about her.
  • a) know
  • b) know of
  • c) knowing

Answer: b) know of

FAQs

  • Q: Can I use “know of” with things other than people?
    A: Yes, you can say “know of” to express awareness of places, events, or things.
  • Q: Is “know of sb” formal or informal?
    A: It is neutral and can be used in both formal and informal contexts.
  • Q: What is the difference between “know sb” and “know of sb”?
    A: “Know sb” means personal familiarity, while “know of sb” means only to have heard about them.
  • Q: Can I say “I know of him well”?
    A: No, “know of” does not express close knowledge, so avoid adding “well.”
  • Q: Is “know of” separable?
    A: No, “know of” is inseparable; the object always comes after the phrase.

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