lag vs follow

lag is a noun but follow is not a noun.

Word	Noun	Adjective	Verb	Adverb
lag	Yes	No	Yes	No
follow	No	No	Yes	No

As verbs, follow is a hypernym of lag; that is, follow is a word with a broader meaning than lag:

lag (noun)	follow (noun)
the act of slowing down or falling behind
one of several thin slats of wood forming the sides of a barrel or bucket
the time between one event, process, or period and another

lag (verb)	follow (verb)
throw or pitch at a mark, as with coins	behave in accordance or in agreement with
cover with lagging to prevent heat loss	keep informed
hang (back) or fall (behind) in movement, progress, development, etc.	keep to
lock up or confine, in or as in a jail	follow, discover, or ascertain the course of development of something
	grasp the meaning
	imitate in behavior; take as a model
	perform an accompaniment to
	to travel behind, go after, come after
	travel along a certain course
	follow in or as if in pursuit
	keep under surveillance
	choose and follow; as of theories, ideas, policies, strategies or plans
	to subscribe to someone's updates on social media
	to be subscribed to updates from another user on social media
	act in accordance with someone's rules, commands, or wishes
	be the successor (of)
	follow with the eyes or the mind
	work in a specific place, with a specific subject, or in a specific function
	accept and follow the leadership or command or guidance of
	adhere to or practice
	be later in time
	come after in time, as a result
	be next
	to bring something about at a later time than
	to be the product or result
	come as a logical consequence; follow logically