angular velocity vs velocity

angular velocity and velocity both are nouns.

Word	Noun	Adjective	Verb	Adverb
angular velocity	Yes	No	No	No
velocity	Yes	No	No	No

As nouns, velocity is a hypernym of angular velocity; that is, velocity is a word with a broader meaning than angular velocity:

angular velocity: (physics) the rate of change of the angular position of a rotating body; usually expressed in radians per second or radians per minute
velocity: distance travelled per unit time

Other hypernyms of angular velocity include speed.

angular velocity (noun)	velocity (noun)
(physics) the rate of change of the angular position of a rotating body; usually expressed in radians per second or radians per minute	distance travelled per unit time