groundwork vs structure

groundwork and structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
groundwork	Yes	No	No	No
structure	Yes	No	Yes	No

groundwork (noun)	structure (noun)
preliminary preparation as a basis or foundation	a thing constructed; a complex entity constructed of many parts
lowest support of a structure	the manner of construction of something and the arrangement of its parts
the fundamental assumptions from which something is begun or developed or calculated or explained	a particular complex anatomical part of a living thing and its construction and arrangement
	the complex composition of knowledge as elements and their combinations
	the people in a society considered as a system organized by a characteristic pattern of relationships

groundwork (verb)	structure (verb)
	give a structure to