study vs compare

study and compare both are nouns.

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

As verbs, compare is a hyponym of study; that is, compare is a word with a more specific, narrower meaning than study:

study: consider in detail and subject to an analysis in order to discover essential features or meaning
compare: examine and note the similarities or differences of

As verbs, compare is a hyponym of study; that is, compare is a word with a more specific, narrower meaning than study:

Other hyponyms of study include factor, factor in, factor out, equate, liken.

study (noun)	compare (noun)
a detailed critical inspection	qualities that are comparable
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)

study (verb)	compare (verb)
be a student of a certain subject	examine and note the similarities or differences of
learn by reading books	consider or describe as similar, equal, or analogous
consider in detail and subject to an analysis in order to discover essential features or meaning	to form the comparative or superlative form on an adjective or adverb
be a student; follow a course of study; be enrolled at an institute of learning	be comparable
think intently and at length, as for spiritual purposes
give careful consideration to