discoloration vs scorch

discoloration and scorch both are nouns.

Word	Noun	Adjective	Verb	Adverb
discoloration	Yes	No	No	No
scorch	Yes	No	Yes	No

As nouns, scorch is a hyponym of discoloration; that is, scorch is a word with a more specific, narrower meaning than discoloration:

Other hyponyms of discoloration include bloodstain, iron mold, iron mould, mud stain, oil stain, tarnish.

discoloration (noun)	scorch (noun)
the act of changing the natural color of something by making it duller or dingier or unnatural or faded	a discoloration caused by heat
a soiled or discolored appearance	a surface burn
	a plant disease that produces a browning or scorched appearance of plant tissues

discoloration (verb)	scorch (verb)
	burn slightly and superficially so as to affect color
	make very hot and dry
	become scorched or singed under intense heat or dry conditions
	destroy completely by or as if by fire
	become superficially burned
	subject to harsh criticism