Definition of Decrease
Quick Meaning of Decrease
To make something lower or smaller in amount or quantity.
Detailed Definition of Decrease
To become smaller or reduce the amount, level, or number of something.
How to Pronounce Decrease
Stress pattern: oO (2-syllable word).
Tip: Stress the second syllable: de-CREASE. The 'ease' sounds like 'eese'.
Watch out: Learners often stress the first syllable incorrectly.
Origin and Etymology of Decrease
From Latin decrescere: to grow less.
How to Use Decrease in a Sentence
Each example shows “decrease” with a CEFR level so learners can pick examples that match their fluency.
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“The store decreased prices after the holiday sale ended.”
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“Sales have decreased by 20 percent this quarter.”
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“As you go higher up the mountain, oxygen levels decrease.”
Synonyms and Antonyms of Decrease
Common Synonyms for Decrease
Smart Synonyms for Decrease — When to Use Each
- lower
- when actively making something smaller in amount
- diminish
- when something gradually becomes less over time
Antonyms of Decrease
Common Collocations with Decrease
These phrases pair with “decrease” in everyday English:
- decrease in price
- decrease over time
- decrease by percentage
- decrease rapidly
Common Mistakes When Using Decrease
Even fluent speakers slip up with “decrease”. Here’s how to avoid the most common errors:
- ✗ Wrong: The temperature decreased from 20 to 10 degrees.
- ✓ Correct: The temperature decreased by 10 degrees.
- Why: Use 'by' to show the amount of change, not 'from...to'.
- ✗ Wrong: Pollution is decreased when people use cars less.
- ✓ Correct: Pollution decreases when people use cars less.
- Why: Active voice is more natural for describing natural processes.
Other Forms of Decrease
Frequently Asked Questions About Decrease
What is the meaning of "Decrease"?
To make something lower or smaller in amount or quantity.
How do you pronounce "Decrease"?
The IPA is /dɪˈkriːs/. Stress the second syllable: de-CREASE. The 'ease' sounds like 'eese'.
What part of speech is "Decrease"?
"Decrease" is a verb at B1 level (Common European Framework).
What are synonyms for "Decrease"?
Common synonyms include lower, diminish, drop.
How do you use "Decrease" in a sentence?
For example: "The store decreased prices after the holiday sale ended."