to heat up
heat
hi:t
hit
up
ʌp
ap
hot up

Definition & Meaning of "heat up"in English

to heat up
01

to make something warm or hot 

Transitive: to heat up sth
to heat up definition and meaning
Grammatical Information
Composition
phrasal
Action verb
Regular
Separable
Particle
up
Base verb
heat
Present tense
heat up
3rd person singular
heats up
Present participle
heating up
Past simple
heated up
Past participle
heated up
Examples
I'm going to heat up some curry for lunch. 
02

to experience an increase in temperature 

Intransitive
Examples
The oven needs some time to heat up before we can start baking. 
03

to become more intense or exciting 

Intransitive
Examples
The rivalry between the two teams has been intense all season, but now it's really heating up as they face each other in the playoffs. 
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