scan vs scanner

scan and scanner both are nouns.

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

scan (noun)	scanner (noun)
the act of scanning; systematic examination of a prescribed region	a radio receiver that moves automatically across some selected range of frequencies looking for some signal or condition
an image produced by scanning	a radar dish that rotates or oscillates in order to scan a broad area
	an electronic device that generates a digital representation of an image for data input to a computer
	someone who scans verse to determine the number and prosodic value of the syllables

scan (verb)	scanner (verb)
obtain data from magnetic tapes or other digital sources
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