Shift and Shake-up

Shift noun - An action planned or taken to achieve a desired result.

Shake-up and shift are semantically related In some cases you can use "Shake-up" instead a noun "Shift".

Nearby Words: shifting, shifted, shifty, shiftiness, shifter

Shake-up noun - The imposition of a new organization; organizing differently (often involving extensive and drastic changes).

Shift and shake-up are semantically related in reorganization topic. You can use "Shift" instead a noun phrase "Shake-up", if it concerns topics such as often in politics.