reality principle vs depth psychology

reality principle and depth psychology both are nouns.

Word	Noun	Adjective	Verb	Adverb
reality principle	Yes	No	No	No
depth psychology	Yes	No	No	No

reality principle (noun)	depth psychology (noun)
(psychoanalysis) the governing principle of the ego; the principle that as a child grows it becomes aware of the real environment and the need to accommodate to it	a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud