Question

What does the symbol omega mean in physics?

Answer 1

Generally, the symbol $\omega$ is used to indicate the angular velocity.

In a circular motion, the angular velocity is defined as the time rate of change of the angular displacement, relative to the origin. If we call $\theta$ the angular displacement of an object relative to the origin, and t the time, the angular velocity can be written as
$\omega = \frac{\theta}{t}$
and it is measured in radiants per second (rad/s).