What Does “Know sth as sth” Mean?
The phrase “know sth as sth” means to recognize or be familiar with something by a particular name or identity. It is used when identifying or referring to something in a specific way.
Introduction
The expression “know sth as sth” is a common structure in English that helps you describe how someone or something is recognized or identified. The “sth” stands for “something,” and this phrase is often used to explain the name or role by which an object, person, or concept is known. For example, you might say “She is known as a great artist,” meaning people recognize her by that title. Understanding the “know sth as sth meaning” is important because it helps you communicate clearly how things are identified in everyday language. This phrase appears in many contexts, from formal introductions to casual conversations, making it a useful expression to master.
Quick Info Box
- Phrasal verb: know something as something
- Type: Transitive
- Level: B1 (Intermediate)
- Short meaning: To recognize or identify someone or something by a particular name or role
Structure (Grammar Rules)
“Know sth as sth” is a transitive phrase and is inseparable. You cannot separate “know” from “as.” The pattern is:
- Subject + know + something + as + something
Examples of patterns:
- I know her as a reliable friend.
- They know the city as the financial capital.
How to Use “Know sth as sth”?
Use “know sth as sth” when you want to express how someone or something is identified or recognized. It usually involves a name, a role, a title, or a description. This phrase helps clarify the identity or reputation of the subject in question. It is commonly used in both spoken and written English to give information about familiarity or recognition.
Examples
Here are some natural examples to help you understand “know sth as sth in a sentence”:
- Many people know him as a talented musician.
- This building is known as the tallest in the city.
- She is known as the expert in digital marketing.
- We know this dish as a traditional recipe from Italy.
- He is known as a hardworking employee by everyone in the office.
Common Mistakes
Sometimes learners confuse the word order or use incorrect prepositions. Here are some examples:
- Incorrect: I know as him a good teacher.
- Correct: I know him as a good teacher.
- Incorrect: She is known like an artist.
- Correct: She is known as an artist.
Differences / Synonyms
Similar expressions include “recognize as,” “identify as,” and “refer to as.” However, “know sth as sth” emphasizes familiarity or general awareness, while “recognize” often implies visual or sensory identification. “Refer to as” is used when naming or calling something specifically.
- Know as: Familiarity or common identification.
- Recognize as: Identifying something or someone, often visually.
- Refer to as: Naming or calling something a certain way.
Common Collocations
Here are common objects and roles that pair well with “know sth as sth”:
- Known as a leader: Recognized for leadership qualities.
- Known as a landmark: Famous building or location.
- Known as a hero: Recognized for brave actions.
- Known as a symbol: Represents a particular idea or group.
- Known as a fact: Accepted as true information.
Related Phrasal Verbs
Here are related phrasal verbs of know sth as sth:
Real-life Dialogue
Here is a short conversation using “know sth as sth”:
Anna: Do you know the new teacher?
Ben: Yes, I know her as the math specialist.
Anna: Oh, that’s great! I’ve heard she’s excellent.
Practice
Choose the correct sentence:
- A) I know him as a great artist.
- B) I know as him a great artist.
- C) I know him like a great artist.
Fill in the blank:
They ______ the city as the cultural capital.
FAQs
- Q: Can “know sth as sth” be used in the past tense?
A: Yes, for example, “She was known as a pioneer.” - Q: Is “know sth as sth” formal or informal?
A: It is neutral and suitable for both formal and informal contexts. - Q: Can “know” be separated from “as” in this phrase?
A: No, the phrase is inseparable. - Q: What does “sth” mean in “know sth as sth”?
A: “Sth” is short for “something.” - Q: Can “know sth as sth” be used with people and objects?
A: Yes, it can refer to people, places, objects, or ideas.

