shake-up

Noun shake-up has 1 sense

• shake-up(n = noun.act) reorganisation, reorganization, shakeup - the imposition of a new organization; organizing differently (often involving extensive and drastic changes); "a committee was appointed to oversee the reorganization of the curriculum"; "top officials were forced out in the cabinet shakeup"
is a kind of organisation, organization
Derived form verb shake up₂