tag vs follow

tag is a noun but follow is not a noun.

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

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

Other hypernyms of tag include pursue.

tag (noun)	follow (noun)
(sports) the act of touching a player in a game (which changes their status in the game)
a game in which one child chases the others; the one who is caught becomes the next chaser
a small piece of cloth
a label written or printed on paper, cardboard, or plastic that is attached to something to indicate its owner, nature, price, etc.
a label associated with something for the purpose of identification

tag (verb)	follow (verb)
provide with a name or nickname	behave in accordance or in agreement with
attach a tag or label to	keep informed
touch a player while he is holding the ball	keep to
supply (blank verse or prose) with rhymes	follow, discover, or ascertain the course of development of something
go after with the intent to catch	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