analysis vs ego

analysis and ego both are nouns.

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

analysis (noun)	ego (noun)
an investigation of the component parts of a whole and their relations in making up the whole	(psychoanalysis) the conscious mind
a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud	your consciousness of your own identity
the abstract separation of a whole into its constituent parts in order to study the parts and their relations	an inflated feeling of pride in your superiority to others
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'