presumption vs assumption

presumption and assumption both are nouns.

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

As nouns, presumption and assumption are synonyms defined as:

presumption and assumption: audacious (even arrogant) behavior that you have no right to

Other synonyms of presumption include effrontery, presumptuousness.

As nouns, assumption is a hypernym of presumption; that is, assumption is a word with a broader meaning than presumption:

Other hypernyms of presumption include supposal, supposition.

presumption (noun)	assumption (noun)
a kind of discourtesy in the form of an act of presuming	the act of taking possession of or power over something
audacious (even arrogant) behavior that you have no right to	the act of assuming or taking for granted
an assumption that is taken for granted	audacious (even arrogant) behavior that you have no right to
(law) an inference of the truth of a fact from other facts proved or admitted or judicially noticed	a hypothesis that is taken for granted
	a statement that is assumed to be true and from which a conclusion can be drawn