Cool off in a sentence describes the moment anger or heat begins to fade, and it almost never takes a direct object. A person who has argued cools off by walking away, soup cools off on the counter, and a market cools off when demand falls. The verb is intransitive, so nothing is ever cooled off.
Cool off at a glance
- Cool off is an intransitive phrasal verb, so it takes no direct object.
- Its main sense is to become calm after being angry or excited.
- It also means to become cooler, as food or a room does over time.
- It can describe demand or activity losing intensity.
- The attributive form cooling-off is hyphenated and needs a noun after it.
- It is common in North American speech; British speakers often say cool down.
What does cool off mean?
Cool off is a phrasal verb meaning to become calm after anger or excitement, or to become cooler in temperature. The Cambridge entry for cool off records the calming sense and the cooling sense, and both are intransitive. When the point is reaching a calm state deliberately, calm down is the closer everyday phrase, because cool off stresses the gradual return rather than the effort.
| Sense | Plain meaning | Example sentence |
|---|---|---|
| Become calm | Stop feeling angry or excited | He walked to the corner to cool off. |
| Become cooler | Lose heat gradually | Let the pie cool off before you slice it. |
| Lose momentum | Become less intense or busy | Sales cooled off after the holidays. |
One limitation is worth stating. Cool off means returning to calm; it does not mean the problem has been solved. Two colleagues can cool off and still disagree, so the word describes a pause in feeling rather than a resolution. The retreat can also be genuine or tactical, and only what happens next shows which it was. In formal writing, a plainer phrase such as the tension eased often reads better.
How do you use cool off in a sentence?
Cool off is intransitive, so the person or thing cools off by itself and no object follows the verb. Because there is no object, the particle cannot be separated from the verb; the two words stay together. If you need to name a cause, use a reflexive pronoun or a causal verb instead.
| Pattern | Example | What it signals |
|---|---|---|
| cool off (no object) | You should cool off before you reply. | Intransitive; the person is the subject. |
| cool off + time phrase | The market cooled off after the holidays. | Shows intensity fading over time. |
| let + object + cool off | Let the soup cool off for ten minutes. | The object belongs to let, not to cool off. |
| cool yourself off | She splashed water to cool herself off. | Reflexive form when a cause is named. |
| cooling-off + noun | A cooling-off period protects buyers. | Hyphenated participle used as an adjective. |
| cool it off (rare) | Cool it off in the fridge. | Less standard than cool it down. |
To relax is the gentler cousin, because relaxing needs no anger in the first place, and to soothe a person adds an outside helper, which cool off never does. Another phrasal verb with off, to back off, shares the idea of giving a heated moment room, but it describes the person who steps away rather than the anger that fades.

Cool off in a sentence: examples across contexts
The verb suits any setting where feeling or heat gradually falls. These nine sentences show the senses at work, from a family kitchen to a financial report.
| Context | Example sentence | Why this works |
|---|---|---|
| Family home | Dad went for a walk to cool off after the argument. | The subject acts on themselves. |
| Kitchen | Leave the rice to cool off before you cover it. | The cooling sense with a time cue. |
| Workplace | We agreed to cool off and revisit the plan tomorrow. | Names a pause in a dispute. |
| Business news | Housing demand cooled off in the spring. | Describes fading intensity in a market. |
| Coaching | The referee told both captains to cool off. | An instruction to calm down. |
| Motoring | The brakes need a few minutes to cool off. | The cooling sense for an object. |
| School yard | The children cooled off under the shade of a tree. | Physical comfort after play. |
| Negotiation | Both sides cooled off before returning to the table. | Shows a return to calm before talks. |
| Conversation | Give him time to cool off and then call. | An everyday piece of advice. |
| Hospitality | The tea cooled off while they talked. | The cooling sense with a natural cause. |
| Finance | Investor interest cooled off after the first quarter. | The momentum sense in business writing. |
Cool off vs cool down
The two phrasal verbs differ in grammar more than in meaning. Cool off is intransitive, so a person or thing cools off on its own, while cool down can also be transitive, so you can chill a drink or cool an engine down. When feelings are involved, cool down is the more common choice in British English.
| Attribute | cool off | cool down |
|---|---|---|
| Particle | off | down |
| Transitivity | Intransitive only | Intransitive and transitive |
| Typical subject | An angry person, soup, demand | A person, an engine, a room, a fever |
| Register | Informal, common in North America | Neutral, common in Britain |
| Object possible | No object after the verb | Cool the engine down |
Verdict: choose cool off for a person calming down in everyday speech, and cool down when an object has to be made cooler or when the writing is neutral. To subside is the more formal option when anger or noise fades on its own. A quick test settles the choice: if you can place a person or thing before the phrase and still make sense, you want cool down; if the subject cools off alone, cool off is the safer word.
Word forms and grammar of cool off
Cool is both an adjective and a verb, so cool off is regular in form. The hyphen appears only when the phrase works as a modifier before a noun. The table lists the forms learners meet most often.
| Form | Part of speech | Example |
|---|---|---|
| cool off | phrasal verb, base form | Take a minute to cool off. |
| cooled off | past and past participle | The crowd cooled off before the final whistle. |
| cooling off | present participle | They are still cooling off in the shade. |
| cooling-off | adjective, hyphenated | A cooling-off period follows a house sale. |
| cool-off | noun, informal | The referee called a short cool-off. |
Keep the hyphen in the adjective and the noun, and keep the two words separate when cool off is the verb. The form changes the grammar, not the meaning: cooling-off always needs a noun after it, while the verb cool off stands alone.
Common mistakes with cool off
- Incorrect:
She cooled off him after the argument.Correct: She helped him cool off after the argument. Rule: cool off is intransitive and cannot take a direct object. - Incorrect:
Cool off the engine before you check it.Correct: Cool the engine down before you check it. Rule: use cool down when an object is made cooler by someone. - Incorrect:
He cooled off himself with a cold drink.Correct: He cooled himself off with a cold drink. Rule: with a reflexive pronoun, keep the pronoun between verb and particle. - Incorrect:
The argument cooled off down after an hour.Correct: The argument cooled off after an hour. Rule: do not combine the particles off and down. - Incorrect:
We need a cool off period before signing.Correct: We need a cooling-off period before signing. Rule: the attributive form is hyphenated and uses cooling. - Incorrect:
She cooled off that she was angry.Correct: She cooled off and then explained why she was angry. Rule: cool off cannot introduce a clause with that.
Practice using cool off
Work through the seven items, then check the reasons with the answers.
- Fill the gap: After the argument, both of them needed time to ______.
- Choose the better word: Cool the engine (off / down) before you open the cap.
- Correct the error: She cooled off the soup on the windowsill.
- Build a sentence: use cool off about a child who is upset after losing a game.
- Spot the register: which belongs in a contract — a cooling-off period of seven days, or a cool off week?
- Rewrite with let: The rice needs to cool off. Use let.
- Fix the particle: He cooled off down after the meeting.
Answers
- cool off — the verb is intransitive, so both people simply cool off.
- down — an object is being made cooler, which needs cool down.
- She let the soup cool off on the windowsill — cool off takes no object, so let carries it.
- Model answer: The child went to cool off on the bench before rejoining the game.
- A cooling-off period of seven days — the attributive form is hyphenated.
- Let the rice cool off — the object belongs to let, not to cool off.
- He cooled off after the meeting — the two particles never combine.

The bottom line
Keep cool off in a sentence with no object after it, because the verb is intransitive and the person or thing cools off on its own. The two decisions that settle most sentences are whether the meaning is calming down or losing heat, and whether the phrase is the verb cool off or the hyphenated modifier cooling-off that needs a noun.
Frequently asked questions about cool off
Is cool off one word or two?
As a verb, cool off is always two words, as in sit down and cool off. The hyphen appears only when the phrase modifies a noun, giving the adjective cooling-off, as in a cooling-off period. The informal noun cool-off also takes a hyphen, but it is less common than the adjective.
Is cool off transitive?
No. Cool off is intransitive, so it takes no direct object. You cannot cool off a person; the person cools off. If you need an object, use cool down for objects or a causal verb such as calm someone down, which supplies the object that cool off cannot take.
What is the difference between cool off and cool down?
Cool off is intransitive and informal, common in North American speech, and often describes calming down. Cool down can be transitive as well, so it also cools objects such as an engine or a drink. When physical temperature is involved, cool down is the safer choice.
What is a cooling-off period?
A cooling-off period is a set time during which a buyer can change their mind about a purchase, or two sides in a dispute must wait before acting. The phrase uses the hyphenated adjective cooling-off before the noun period, and it appears in consumer law and industrial relations.
