moderation vs reduction

moderation and reduction both are nouns.

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

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

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

moderation (noun)	reduction (noun)
the action of lessening in severity or intensity	the act of decreasing or reducing something
quality of being moderate and avoiding extremes	the act of reducing complexity
the trait of avoiding excesses	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
a change for the better