Definition of Cool (meaning 1 of 3 — adjective)
Quick Meaning of Cool
When something is slightly cold or feels fresh, not hot.
Detailed Definition of Cool
Having a temperature that is slightly cold; not warm.
How to Pronounce Cool
Stress pattern: O (1-syllable word).
Tip: Say the 'oo' sound like in 'food' - long vowel.
Other Meanings of Cool
“Cool” has 3 distinct meanings in English. You’re viewing meaning #1; here are the other 2:
#2 Cool as a verb
To make something cold or less hot by removing heat.
cool down
#3 Cool as an adjective
When something or someone is fashionable or attractive in a modern way.
cool guy
Origin and Etymology of Cool
Old English col; related to cold.
How to Use Cool in a Sentence
Each example shows “cool” in the meaning “When something is slightly cold or feels fresh,…”, with a CEFR level so learners can pick examples that match their fluency.
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“I love swimming in cool water on hot summer days.”
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“The cool morning air felt refreshing after running.”
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“She wore a cool cotton shirt to stay comfortable.”
Synonyms and Antonyms of Cool
Common Synonyms for Cool
Smart Synonyms for Cool — When to Use Each
- chilly
- when describing air that is mildly cold
- fresh
- when emphasizing a pleasant cool feeling
Antonyms of Cool
Common Collocations with Cool
These phrases pair with “cool” in everyday English:
- cool water
- cool air
- stay cool
- feel cool
- cool breeze
Common Mistakes When Using Cool
Even fluent speakers slip up with “cool”. Here’s how to avoid the most common errors:
- ✗ Wrong: The water is very cool.
- ✓ Correct: The water is quite cool.
- Why: 'Very' is used for gradable adjectives; 'quite' sounds more natural for cool temperatures.
- ✗ Wrong: I am cool.
- ✓ Correct: I feel cool.
- Why: When describing temperature, use 'feel' + adjective, not 'be' + adjective.
Other Forms of Cool
Frequently Asked Questions About Cool
What is the meaning of "Cool"?
When something is slightly cold or feels fresh, not hot.
How do you pronounce "Cool"?
The IPA is /kuːl/. Say the 'oo' sound like in 'food' - long vowel.
What part of speech is "Cool"?
"Cool" is an adjective at A1 level (Common European Framework).
What are synonyms for "Cool"?
Common synonyms include chilly, cold, fresh.
How do you use "Cool" in a sentence?
For example: "I love swimming in cool water on hot summer days."