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English definition of “heat”

heat

noun [U] (TEMPERATURE)   /hit/
warmth , esp . a lot of warmth : the heat of the sun physics Heat is also a form of energy that a substance has because of the movement of its molecules or atoms . The heat can also mean hot weather : I thought I’d like living in Florida, but the heat was too much for me. The heat is also the system in a building or a stove that controls the temperature : I’m freezing – can you turn up the heat? Lower the heat when the water starts to boil .
(Definition of heat noun (TEMPERATURE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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