complex vs analysis

complex and analysis both are nouns.

Word	Noun	Adjective	Verb	Adverb
complex	Yes	Yes	No	No
analysis	Yes	No	No	No

complex (noun)	analysis (noun)
a whole structure (as a building) made up of interconnected or related structures	an investigation of the component parts of a whole and their relations in making up the whole
a conceptual whole made up of complicated and related parts	a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud
(psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior	the abstract separation of a whole into its constituent parts in order to study the parts and their relations
a compound described in terms of the central atom to which other atoms are bound or coordinated	a branch of mathematics involving calculus and the theory of limits; sequences and series and integration and differentiation
	a form of literary criticism in which the structure of a piece of writing is analyzed
	the use of closed-class words instead of inflections: e.g., `the father of the bride' instead of `the bride's father'

complex (adjective)	analysis (adjective)
complicated in structure; consisting of interconnected parts
difficult to analyze or understand