declaim vs scan

declaim is not a noun while scan is a noun.

Word	Noun	Adjective	Verb	Adverb
declaim	No	No	Yes	No
scan	Yes	No	Yes	No

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

Other hyponyms of declaim include elocute, perorate.

declaim (noun)	scan (noun)
	the act of scanning; systematic examination of a prescribed region
	an image produced by scanning

declaim (verb)	scan (verb)
recite in elocution	obtain data from magnetic tapes or other digital sources
speak against in an impassioned manner	read metrically
	make a wide, sweeping search of
	move a light beam over; in electronics, to reproduce an image
	examine hastily
	examine minutely or intensely
	conform to a metrical pattern