landscape architecture vs study

landscape architecture and study both are nouns.

Word	Noun	Adjective	Verb	Adverb
landscape architecture	Yes	No	No	No
study	Yes	No	Yes	No

As nouns, study is a hypernym of landscape architecture; that is, study is a word with a broader meaning than landscape architecture:

landscape architecture: the art, planning, design, management, preservation and rehabilitation of the land and the design of large man-made constructs
study: a branch of knowledge

Other hypernyms of landscape architecture include bailiwick, discipline, field, field of study, subject, subject area, subject field, beaux arts, fine arts.

landscape architecture (noun)	study (noun)
the art, planning, design, management, preservation and rehabilitation of the land and the design of large man-made constructs	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)

landscape architecture (verb)	study (verb)
	be a student of a certain subject
	learn by reading books
	consider in detail and subject to an analysis in order to discover essential features or meaning
	be a student; follow a course of study; be enrolled at an institute of learning
	think intently and at length, as for spiritual purposes
	give careful consideration to