interpolate vs redact

interpolate is not a noun while redact is a noun.

Word	Noun	Adjective	Verb	Adverb
interpolate	No	No	Yes	No
redact	Yes	No	Yes	No

As verbs, redact is a hypernym of interpolate; that is, redact is a word with a broader meaning than interpolate:

interpolate: insert words into texts, often falsifying it thereby
redact: prepare for publication or presentation by correcting, revising, or adapting

Other hypernyms of interpolate include edit.

interpolate (noun)	redact (noun)
	someone who puts text into appropriate form for publication

interpolate (verb)	redact (verb)
insert words into texts, often falsifying it thereby	prepare for publication or presentation by correcting, revising, or adapting
estimate the value of something based on known values	formulate in a particular style or language