exact vs demand

exact is not a noun while demand is a noun.

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

As verbs, exact and demand are synonyms defined as:

As verbs, demand is a hypernym of exact; that is, demand is a word with a broader meaning than exact:

Other hypernyms of exact include ask, call for, involve, necessitate, need, postulate, require, take.

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

exact (adjective)	demand (adjective)
marked by strict and particular and complete accordance with fact
(of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth; strictly correct
lacking compromising or mitigating elements

exact (verb)	demand (verb)
claim as due or just	request urgently and forcefully
take as an undesirable consequence of some event or state of affairs	claim as due or just
	summon to court
	ask to be informed of
	lay legal claim to
	require as useful, just, or proper