heat vs scald

heat and scald both are nouns.

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

As verbs, scald is a hyponym of heat; that is, scald is a word with a more specific, narrower meaning than heat:

Other hyponyms of heat include crisp, crispen, toast, soak, calcine, preheat, overheat, scorch, sear, bake, broil, reheat.

heat (noun)	scald (noun)
utility to warm a building	the act of burning with steam or hot water
the presence of heat	a burn cause by hot liquid or steam
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

heat (verb)	scald (verb)
gain heat or get hot	burn with a hot liquid or steam
make hot or hotter	heat to the boiling point
arouse or excite feelings and passions	treat with boiling water
provide with heat	subject to harsh criticism