Definition of heat:
a form of energy that is transferred by a difference in temperature
the presence of heat
the sensation caused by heat energy
the trait of being intensely emotional
applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
a preliminary race in which the winner advances to a more important race
utility to warm a building; "the heating system wasn't working"; "they have radiant heating"
make hot or hotter; "the sun heats the oceans"; "heat the water on the stove"
provide with heat; "heat the house"
arouse or excite feelings and passions; "The ostentatious way of living of the rich ignites the hatred of the poor"; "The refugees' fate stirred up compassion around the world"; "Wake old feelings of hatred"
gain heat or get hot; "The room heated up quickly"