What Does “Reduce sth” Mean?
“Reduce sth” means to make something smaller in size, amount, or degree. It is used when you want to lower or decrease something.
Introduction
The phrase “Reduce sth” is a common way to talk about lowering or decreasing something. The word “reduce” means to make less or smaller, and “sth” is short for “something.” This phrase is often used in everyday English when discussing changes in quantity, size, or intensity. For example, you might want to reduce your expenses, reduce stress, or reduce the amount of sugar you eat. Understanding the reduce sth meaning helps you use it correctly in conversations and writing. It is a useful phrase in both formal and informal settings.
Quick Info Box
- Phrasal verb: Reduce sth (reduce something)
- Type: Transitive
- Level: A2–B2
- Short meaning: To make something smaller or less
Structure (Grammar Rules)
“Reduce” is a transitive verb, which means it needs an object (something to reduce). It is not a separable phrasal verb because “reduce” and “something” cannot be separated by other words.
Basic patterns:
- Reduce + something (e.g., reduce costs)
- Reduce + noun + by + amount/percentage (e.g., reduce prices by 20%)
How to Use “Reduce sth”?
Use “reduce sth” when you want to express decreasing or lowering something. This can be physical things like weight or abstract things like risk or noise. It fits well in instructions, advice, or descriptions of changes.
Examples:
- Reduce your sugar intake to stay healthy.
- The company plans to reduce its carbon emissions.
- We need to reduce the time spent on this task.
Examples
- She wants to reduce her spending to save money.
- The government aims to reduce pollution in the city.
- Doctors often recommend reducing salt in your diet.
- They reduced the price of the product by 10%.
- We should reduce noise levels during the night.
Common Mistakes
- Incorrect: Reduce on sugar intake.
- Correct: Reduce sugar intake.
- Incorrect: Reduce something of the problem.
- Correct: Reduce the problem.
Remember, “reduce” is followed directly by the object without prepositions like “on” or “of.”
Differences / Synonyms
Similar verbs include “cut,” “lower,” and “decrease.”
- Reduce vs Cut: “Cut” often implies a sudden or sharp decrease, while “reduce” can be gradual.
- Reduce vs Lower: “Lower” is often used for physical things like lowering a volume or level, while “reduce” is more general.
- Reduce vs Decrease: Both mean to make less, but “reduce” is more common in everyday speech.
Common Collocations
- Reduce costs
- Reduce risk
- Reduce noise
- Reduce weight
- Reduce pollution
- Reduce expenses
- Reduce speed
Real-life Dialogue
Anna: I want to reduce my monthly expenses. Any ideas?
John: You could reduce your electricity use or eat out less.
Anna: Good idea! I’ll try to reduce my shopping too.
Practice
Fill in the blanks with the correct form of “reduce”:
- We need to _______ the noise during the meeting.
- They decided to _______ their carbon footprint.
- Doctors advise to _______ sugar for better health.
- The company plans to _______ costs by 15% next year.
FAQs
- Q: Can “reduce” be used without an object?
A: No, “reduce” is a transitive verb and needs an object. - Q: Is “reduce sth” formal or informal?
A: It is suitable for both formal and informal English. - Q: Can I say “reduce on something”?
A: No, just say “reduce something” without “on.” - Q: What is the difference between “reduce” and “cut”?
A: “Cut” often means a sudden decrease, “reduce” can be gradual. - Q: How do I use “reduce” in past tense?
A: Use “reduced” (e.g., They reduced the price).

