shake up vs fuel

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

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

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

shake up (noun)	fuel (noun)
	a substance that can be consumed to produce energy

shake up (verb)	fuel (verb)
make fuller by shaking	stimulate
change the arrangement or position of	provide with a combustible substance that provides energy
stir the feelings, emotions, or peace of	provide with fuel
shock physically	take in fuel, as of a ship
shake; especially (a patient to detect fluids or air in the body)
organize anew