moderation vs abatement

moderation and abatement both are nouns.

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

As nouns, abatement is a hyponym of moderation; that is, abatement is a word with a more specific, narrower meaning than moderation:

moderation (noun)	abatement (noun)
the action of lessening in severity or intensity	the act of abating
quality of being moderate and avoiding extremes	an interruption in the intensity or amount of something
the trait of avoiding excesses
a change for the better