dialectics vs rationale

dialectics and rationale both are nouns.

Word	Noun	Adjective	Verb	Adverb
dialectics	Yes	No	No	No
rationale	Yes	No	No	No

As nouns, rationale is a hypernym of dialectics; that is, rationale is a word with a broader meaning than dialectics:

dialectics: a rationale for dialectical materialism based on change through the conflict of opposing forces
rationale: (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)

Other hypernyms of dialectics include principle.

dialectics (noun)	rationale (noun)
a rationale for dialectical materialism based on change through the conflict of opposing forces	(law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)