warmth vs heat

warmth and heat both are nouns.

Word	Noun	Adjective	Verb	Adverb
warmth	Yes	No	No	No
heat	Yes	No	Yes	No

As nouns, heat is a hypernym of warmth; that is, heat is a word with a broader meaning than warmth:

Other hypernyms of warmth include high temperature, hotness.

As nouns, warmth and heat are synonyms defined as:

Other synonyms of warmth include passion.

As nouns, warmth and heat are synonyms defined as:

warmth (noun)	heat (noun)
a quality proceeding from feelings of affection or love	utility to warm a building
the quality of having a moderate degree of heat	the presence of heat
the trait of being intensely emotional	the trait of being intensely emotional
the sensation caused by heat energy	the sensation caused by heat energy
a warmhearted feeling	a preliminary race in which the winner advances to a more important race
	a form of energy that is transferred by a difference in temperature
	applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

warmth (verb)	heat (verb)
	gain heat or get hot
	make hot or hotter
	arouse or excite feelings and passions
	provide with heat