shake up vs affright

shake up is not a noun while affright is a noun.

Word	Noun	Adjective	Verb	Adverb
shake up	No	No	Yes	No
affright	Yes	No	Yes	No

As verbs, affright is a hyponym of shake up; that is, affright is a word with a more specific, narrower meaning than shake up:

shake up (noun)	affright (noun)
	an overwhelming feeling of fear and anxiety

shake up (verb)	affright (verb)
make fuller by shaking	cause fear in
change the arrangement or position of
stir the feelings, emotions, or peace of
shock physically
shake; especially (a patient to detect fluids or air in the body)
organize anew