articulate vs redact

articulate is not a noun while redact is a noun.

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

As verbs, redact is a hyponym of articulate; that is, redact is a word with a more specific, narrower meaning than articulate:

Other hyponyms of articulate include ask, lexicalise, lexicalize, dogmatise, dogmatize, formularise, formularize, cast, couch, frame, put.

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

articulate (adjective)	redact (adjective)
expressing yourself easily or characterized by clear expressive language
consisting of segments held together by joints

articulate (verb)	redact (verb)
speak, pronounce, or utter in a certain way	prepare for publication or presentation by correcting, revising, or adapting
express or state clearly	formulate in a particular style or language
put into words or an expression
provide with a joint
unite by forming a joint or joints