moderation vs dryness

moderation and dryness both are nouns.

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

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

Other hyponyms of moderation include sobriety, abstemiousness.

moderation (noun)	dryness (noun)
the action of lessening in severity or intensity	objectivity and detachment
quality of being moderate and avoiding extremes	moderation in or abstinence from alcohol or other drugs
the trait of avoiding excesses	the condition of not containing or being covered by a liquid (especially water)
a change for the better