demand vs exaction

demand and exaction both are nouns.

Word	Noun	Adjective	Verb	Adverb
demand	Yes	No	Yes	No
exaction	Yes	No	No	No

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

Other hyponyms of demand include claim.

demand (noun)	exaction (noun)
the act of demanding	act of demanding or levying by force or authority
required activity
an urgent or peremptory request
the ability and desire to purchase goods and services
a condition requiring relief

demand (verb)	exaction (verb)
request urgently and forcefully
claim as due or just
summon to court
ask to be informed of
lay legal claim to
require as useful, just, or proper