The "action" word in a sentence is also known as a

It is known as verbs (action verbs or dynamic words)

Explanation:

An action verb (verbs) explains what the subject of the sentence is doing or has done.

sentence - Marie is throwing a ball.

Eg of vebs are throwing, ran, play etc.

Verbs also describe nouns on the basis of who, when, what, where

Answer:verb

Explanation: verbs describe what, who, when, where of the noun