heat in WordNet English dictionary

1. applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
   estrus  oestrus  heat  rut 
   
2. utility to warm a building
   "the heating system wasn't working"; "they have radiant heating"
   heating system  heating plant  heating  heat 
   
3. the presence of heat
   hotness  heat  high temperature 
   
4. the trait of being intensely emotional
   heat  warmth  passion 
   
5. the sensation caused by heat energy
   heat  warmth 
   
6. a preliminary race in which the winner advances to a more important race
   heat 
   
7. a form of energy that is transferred by a difference in temperature
   heat  heat energy 
   

1. 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"
   inflame  stir up  wake  ignite  heat  fire up 
   
2. gain heat or get hot
   "The room heated up quickly"
   heat  hot up  heat up 
   
3. make hot or hotter
   "the sun heats the oceans"; "heat the water on the stove"
   heat  heat up 
   
4. provide with heat
   "heat the house"
   heat