shrink vs shrivel

shrink is a noun but shrivel is not a noun.

Word	Noun	Adjective	Verb	Adverb
shrink	Yes	No	Yes	No
shrivel	No	No	Yes	No

As verbs, shrink and shrivel are synonyms defined as:

Other synonyms of shrink include shrivel up, wither.

As verbs, shrink and shrivel are synonyms defined as:

shrink (noun)	shrivel (noun)
a physician who specializes in psychiatry

shrink (verb)	shrivel (verb)
become smaller or draw together	wither, as with a loss of moisture
reduce in size; reduce physically	decrease in size, range, or extent
wither, as with a loss of moisture
decrease in size, range, or extent
draw back, as with fear or pain