to turn on the heat
- phrasal verb
- Before the guests arrive, make sure to turn on the heat to warm up the house.
- turned on the heat in the car
Examples
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We'll turn on the heat downstairs.
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They put on their coats before they climbed in, and Gust turned on the heat as he started the car.
Fiction book (1993) -
Now turn on the heat.
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Who turned on the heat?
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Could you turn on the heat?
Fiction book (1997) -
I'll turn on the heat.
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We'd be warmer if you turned on the heat.
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Turn on the heat.
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He carried me to the backseat of his car, turned on the heat, pulled a scratchy wool blanket out of the trunk, and poured me some coffee from his thermos.
Fiction book (2001) -
Whenever it gets too cold, I always turn on the heat in my apartment.
Synonyms
To make a device like a light start working by pressing a button or moving a switch
Antonyms
How Warm
Surface Forms
Morphology
The phrase is compositionally transparent: 'turn on' conveys activating/powering (on = active) and 'heat' denotes the heating system, so a learner who knows the parts can derive 'activate the heating system'. The verb+particle+noun pattern is common and cross-linguistically paralleled, making the meaning predictable for a B1 learner.
Etymology
Turn on the heat comes from the simple image of someone moving a switch or knob to start a heater so the room gets warm. That's why turn on and heat mean 'to activate the heating system' and make a place warm.