impute vs attribute

impute is not a noun while attribute is a noun.

Word	Noun	Adjective	Verb	Adverb
impute	No	No	Yes	No
attribute	Yes	No	Yes	No

As verbs, impute and attribute are synonyms defined as:

Other synonyms of impute include ascribe, assign.

As verbs, attribute is a hypernym of impute; that is, attribute is a word with a broader meaning than impute:

Other hypernyms of impute include ascribe, assign, impute.

impute (noun)	attribute (noun)
	an abstraction belonging to or characteristic of an entity
	a construct whereby objects or individuals can be distinguished

impute (verb)	attribute (verb)
attribute or credit to	attribute or credit to
attribute (responsibility or fault) to a cause or source	decide as to where something belongs in a scheme