shake-upBrE /ˈʃeɪk ʌp/ 🔊NAmE /ˈʃeɪk ʌp/ 🔊 (also ˈshake-out) noun~ (in/of sth) a situation in which a lot of changes are made to a company, an organization, etc. in order to improve the way in which it works （机构的）重大调整，重组◆a management shake-up管理层的大调整