In music:

In physics:

The farming practice of crop rotation.

Rotational spectroscopy

A transformation in the rotation group

The optical rotation polarization.

A coordinate rotation is the transformation of coordinate systems.

Rotation (mathematics)

In aviation, rotation refers to takeoff

The business management approach of job rotation.

In elections, Robson Rotation is the practice of printing multiple ballots for an election, each having the candidates listed in a different order.

The differential rotation of objects.

The term rotation can be used in several ways and includes various topics. Generally, it is used to denote (in 3D) the rotation of movement of a rigid body in such a way that any given point of that body remains at a constant distance from some fixed line (in 2D: point). More specifically, it is applicable to:

The retail practice of stock rotation (especially fresh produce/bread) to ensure the stock with the soonest sell by date is at the front of the shelf - meaning it will be sold first.

In geometry and mathematics:

An improper rotation producing an inversion.

An order operation that may be performed on a set of pitches or pitch classes, where the last member is placed first. Sets which may be mapped onto each other through rotation are rotationally equivalent. See: transformation, permutation

Rotation (billiards) is also the name of a billiards game.

In baseball pitching, the rotation is the group of starting pitchers for a team, and the order in which they pitch.

In medicine, and specifically medical education, rotation refers to the later part of medical training where students spend time in an actual hospital environment, as opposed to receiving classroom instruction.