shakeup vs shake-up

shakeup and shake-up both are nouns.

Word	Noun	Adjective	Verb	Adverb
shakeup	Yes	No	No	No
shake-up	Yes	No	No	No

As nouns, shakeup and shake-up are synonyms defined as:

shakeup and shake-up: the imposition of a new organization; organizing differently (often involving extensive and drastic changes)

Other synonyms of shakeup include reorganisation, reorganization.

shakeup (noun)	shake-up (noun)
the imposition of a new organization; organizing differently (often involving extensive and drastic changes)	the imposition of a new organization; organizing differently (often involving extensive and drastic changes)