What Does โKnock sb backโ Mean?
โKnock sb backโ means to cost someone a certain amount of money or to surprise or shock someone. It is often used in informal contexts.
Introduction
The phrase โknock sb backโ has two main meanings in English. First, it can refer to the amount of money something costs someone, especially when it is unexpectedly high. For example, โThat new phone knocked me back $500.โ Second, it can also mean to shock or surprise someone, often emotionally or physically. Understanding the knock sb back meaning is useful for learners because this phrase appears frequently in spoken English and informal writing. Knowing how to use it correctly will help you sound more natural and understand conversations better.
Quick Info Box
- Phrasal verb: knock somebody back
- Type: transitive
- Level: B2 (Upper-Intermediate)
- Short meaning: to cost someone money or to surprise/shock someone
Structure (Grammar Rules)
โKnock sb backโ is a transitive phrasal verb. It is separable, meaning you can place the object (sb) between โknockโ and โbackโ or after โback.โ
- knock somebody back
- knock back somebody
Example patterns:
- It knocked me back $100.
- The repairs knocked back the company a lot of money.
How to Use โKnock sb backโ?
Use โknock sb backโ when talking about costs or expenses that surprise or affect someone financially. It also works when describing a sudden shock or surprise that affects someone emotionally or physically.
For costs: โThe dinner knocked me back twenty dollars.โ
For surprise or shock: โThe news really knocked him back.โ
Examples
Here are some examples to help you understand โknock sb backโ in sentences:
- The car repair knocked me back over $1,000.
- Buying a new laptop knocked her back a fair amount.
- The sudden announcement knocked him back for a moment.
- That unexpected phone bill really knocked me back.
- Hearing the bad news knocked her back emotionally.
Common Mistakes
Sometimes learners confuse โknock sb backโ with โknock backโ without an object or use it incorrectly with the wrong preposition.
- Incorrect: It knocked back me $50.
- Correct: It knocked me back $50.
- Incorrect: The price knocked me off.
- Correct: The price knocked me back.
Remember, the object (sb) should be placed correctly between โknockโ and โbackโ or after โback.โ
Differences / Synonyms
โKnock sb backโ is different from โknock back,โ which usually means to drink quickly (often alcohol). It also differs from โset sb back,โ which only refers to money costs.
- Knock sb back: cost money or shock someone
- Knock back: drink quickly
- Set sb back: cost money (similar meaning but more formal)
Use โknock sb backโ in informal conversations about costs or surprises.
Common Collocations
Some common words used with โknock sb backโ include:
- Money โ The repairs knocked me back a lot of money.
- Cost โ That mistake knocked us back significantly.
- Bill โ The electricity bill knocked me back this month.
- Shock โ The news knocked her back emotionally.
Related Phrasal Verbs
Here are related phrasal verbs of knock sb back:
Real-life Dialogue
Here is a short conversation using โknock sb backโ:
Tom: How much did the car repairs cost you?
Anna: They knocked me back nearly $800. It was more expensive than I expected.
Tom: Thatโs a lot! I hope it was worth it.
Practice
Try to complete the sentences below with the correct form of โknock sb backโ:
- The new phone __________ me back $600.
- Hearing the bad news really __________ him back.
- The unexpected repair bill __________ us back a lot of money.
- That mistake __________ the company back financially.
FAQs
- What does โknock sb backโ mean? It means to cost someone money or to shock or surprise someone.
- Is โknock sb backโ formal? No, it is mostly used in informal spoken English.
- Can I say โknock me back $100โ? Yes, that is a correct way to say it.
- Is โknock backโ the same as โknock sb backโ? No, โknock backโ usually means to drink quickly, without an object.
- Can โknock sb backโ be used for emotional shock? Yes, it can mean to emotionally or physically surprise or shock someone.
