devaluation vs reduction

devaluation and reduction both are nouns.

Word	Noun	Adjective	Verb	Adverb
devaluation	Yes	No	No	No
reduction	Yes	No	No	No

As nouns, reduction is a hypernym of devaluation; that is, reduction is a word with a broader meaning than devaluation:

Other hypernyms of devaluation include decrease, diminution, step-down.

devaluation (noun)	reduction (noun)
the reduction of something's value or worth	the act of decreasing or reducing something
an official lowering of a nation's currency; a decrease in the value of a country's currency relative to that of foreign countries	the act of reducing complexity
	any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent