scramble vs stir up

scramble is a noun but stir up is not a noun.

Word	Noun	Adjective	Verb	Adverb
scramble	Yes	No	Yes	No
stir up	No	No	Yes	No

As verbs, stir up is a hypernym of scramble; that is, stir up is a word with a broader meaning than scramble:

Other hypernyms of scramble include agitate, commove, disturb, raise up, shake up, vex.

scramble (noun)	stir up (noun)
rushing about hastily in an undignified way
an unceremonious and disorganized struggle

scramble (verb)	stir up (verb)
make unintelligible	provoke or stir up
bring into random order	change the arrangement or position of
stir vigorously	arouse or excite feelings and passions
to move hurriedly	try to stir up public opinion
climb awkwardly, as if by scrambling