What Does “Weigh sth up” Mean?
“Weigh sth up” means to carefully consider or think about the pros and cons of something before making a decision.
Introduction
The phrase Weigh sth up is a common phrasal verb used in English when someone needs to evaluate different aspects of a situation. It involves thinking carefully about the advantages and disadvantages before deciding what to do. Understanding the Weigh sth up meaning helps learners express thoughtful decision-making in conversations and writing. This phrase is useful in many contexts, such as work, personal life, or problem-solving. Using it correctly can make your English sound more natural and precise.
Quick Info Box
- Phrasal verb: Weigh something up
- Type: Transitive
- Level: B2 (Upper-Intermediate)
- Short meaning: To carefully consider the pros and cons
Structure (Grammar Rules)
“Weigh sth up” is a separable phrasal verb, which means you can place the object between the verb and the particle or after the particle.
- Weigh something up
- Weigh up something
Examples:
- She needs to weigh up the options before choosing.
- He is weighing up his choices carefully.
How to Use Weigh sth up?
Use “weigh sth up” when you want to talk about thinking carefully about different parts of a decision. It is often used with nouns like “options,” “pros and cons,” “risks,” or “advantages.” The phrase fits both formal and informal English and is common in spoken and written language.
Examples
Here are some examples to show how to use “weigh sth up in a sentence”:
- Before accepting the job offer, she weighed up the salary and the work environment.
- We need to weigh up the risks before investing in that project.
- He weighed up the pros and cons carefully and decided to move abroad.
- When buying a car, it’s important to weigh up the fuel efficiency against the price.
- They weighed up all the evidence before making a final decision.
Common Mistakes
Many learners confuse the word order or use the phrase without an object. Here are some incorrect vs correct examples:
- Incorrect: I weigh up carefully.
Correct: I weigh up the options carefully. - Incorrect: She weigh the pros and cons up.
Correct: She weighs up the pros and cons. - Incorrect: He is weighing up.
Correct: He is weighing up the risks.
Differences / Synonyms
Similar phrasal verbs include “think over,” “consider,” and “mull over.” However, “weigh sth up” emphasizes balancing different factors, especially pros and cons. “Think over” is more general and less about comparing advantages and disadvantages.
- Think over: To consider something carefully, not necessarily comparing pros and cons.
- Mull over: To think about something deeply and slowly.
- Weigh up: To evaluate by comparing positive and negative aspects.
Common Collocations
People often use “weigh sth up” with specific objects to describe what they are considering. Here are some common collocations:
- Options: Different choices available
- Pros and cons: Advantages and disadvantages
- Risks: Possible dangers or problems
- Alternatives: Other possibilities
- Evidence: Facts or information to consider
Related Phrasal Verbs
Here are related phrasal verbs of weigh sth up:
Real-life Dialogue
Here is a short conversation using “weigh sth up”:
Anna: I’m not sure if I should take the new job.
Tom: Have you weighed up the benefits and the challenges?
Anna: Yes, I’ve weighed up the salary and the commute, and I think it’s worth it.
Practice
Try to complete the sentences with the correct form of “weigh sth up”:
- Before making a decision, you should ________ all the options.
- She is ________ the pros and cons of moving to a new city.
- They ________ the risks before signing the contract.
Answers: weigh up, weighing up, weighed up
FAQ
- What does “weigh sth up” mean? It means to carefully consider the pros and cons before deciding.
- Is “weigh sth up” separable? Yes, you can place the object between “weigh” and “up” or after “up.”
- Can I use “weigh up” in formal writing? Yes, it is appropriate in both formal and informal contexts.
- What is a synonym for “weigh sth up”? “Consider,” “think over,” or “mull over” are similar but less focused on pros and cons.
- Can “weigh up” be used without an object? No, it usually needs an object to show what is being considered.

