Not transitive; not passing over to an object; expressing an action or state that is limited to the agent or subject, or, in other words, an action which does not require an object to complete the sense; as, an intransitive verb, e. g., the bird flies; the dog runs.

refers to a verb that does not take a direct object; that is, to a verb that does not express an action which directly affects another person or thing They fall

a verb that does not take a direct object (e.g. die).

designating a verb that does not require or cannot take a direct object