Definition of heat up
- The morning started out cold but it heated up quickly.
- Their conversation started to heat up.
- Competition between the two companies is heating up.
- Could you heat up the vegetables, please?
: to become warm or hot
: to start to spoil from heat
: to make warm or hot
: a condition of being hot : warmth
: a marked or notable degree of hotness
: pathological excessive bodily temperature
: in or into a higher position or level
: from beneath the ground or water to the surface
: from below the horizon
: risen above the horizon
: being out of bed
used as a function word to indicate motion to or toward or situation at a higher point of
: up into or in the
: in a direction regarded as being toward or near the upper end or part of
: one in a high or advantageous position
: an upward slope
: a period or state of prosperity or success
: to rise from a lying or sitting position
: to move upward : ascend
used with and and another verb to indicate that the action of the following verb was either surprisingly or abruptly initiated
What made you want to look up heat up? Please tell us where you read or heard it (including the quote, if possible).