given vs presumption

given and presumption both are nouns.

Word	Noun	Adjective	Verb	Adverb
given	Yes	Yes	No	No
presumption	Yes	No	No	No

As nouns, given and presumption are synonyms defined as:

Other synonyms of given include precondition.

given (noun)	presumption (noun)
an assumption that is taken for granted	a kind of discourtesy in the form of an act of presuming
	audacious (even arrogant) behavior that you have no right to
	an assumption that is taken for granted
	(law) an inference of the truth of a fact from other facts proved or admitted or judicially noticed

given (adjective)	presumption (adjective)
acknowledged as a supposition
(usually followed by `to') naturally disposed toward