follow vs study

follow is not a noun while study is a noun.

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

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

follow: follow, discover, or ascertain the course of development of something
study: consider in detail and subject to an analysis in order to discover essential features or meaning

Other hypernyms of follow include analyse, analyze, canvass, examine.

follow (noun)	study (noun)
	a detailed critical inspection
	a room used for reading and writing and studying
	preliminary drawing for later elaboration
	attentive consideration and meditation
	a branch of knowledge
	applying the mind to learning and understanding a subject (especially by reading)
	a state of deep mental absorption
	a written document describing the findings of some individual or group
	a composition intended to develop one aspect of the performer's technique
	someone who memorizes quickly and easily (as the lines for a part in a play)

follow (verb)	study (verb)
behave in accordance or in agreement with	be a student of a certain subject
keep informed	learn by reading books
keep to	consider in detail and subject to an analysis in order to discover essential features or meaning
follow, discover, or ascertain the course of development of something	be a student; follow a course of study; be enrolled at an institute of learning
grasp the meaning	think intently and at length, as for spiritual purposes
imitate in behavior; take as a model	give careful consideration to
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