heat

(noun) a form of energy that is transferred by a difference in temperature. Synonyms: heat energy.

(noun) the presence of heat. Synonyms: hotness, high temperature.

(noun) the sensation caused by heat energy. Synonyms: warmth.

(noun) the trait of being intensely emotional. Synonyms: warmth, passion.

(noun) applies to nonhuman mammals: a state or period of heightened sexual arousal and activity. Synonyms: estrus, oestrus, rut.

(noun) a preliminary race in which the winner advances to a more important race.

(noun) utility to warm a building. Synonyms: heating system, heating plant, heating. Examples: "The heating system wasn't working." "They have radiant heating."

(verb) make hot or hotter. Synonyms: heat up. Examples: "The sun heats the oceans." "Heat the water on the stove."

(verb) provide with heat. Examples: "Heat the house."

(verb) arouse or excite feelings and passions. Synonyms: inflame, stir up, wake, ignite, fire up. Examples: "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."

(verb) gain heat or get hot. Synonyms: hot up, heat up. Examples: "The room heated up quickly."