steam boiler vs heat

steam boiler and heat both are nouns.

Word	Noun	Adjective	Verb	Adverb
steam boiler	Yes	No	No	No
heat	Yes	No	Yes	No

steam boiler (noun)	heat (noun)
sealed vessel where water is converted to steam	utility to warm a building
	the presence of heat
	the trait of being intensely emotional
	the sensation caused by heat energy
	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

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