wiper vs wiper blade

wiper and wiper blade both are nouns.

Word	Noun	Adjective	Verb	Adverb
wiper	Yes	No	No	No
wiper blade	Yes	No	No	No

As nouns, wiper and wiper blade are synonyms defined as:

Other synonyms of wiper include windscreen wiper, windshield wiper.

wiper (noun)	wiper blade (noun)
a mechanical device that cleans the windshield	a mechanical device that cleans the windshield
contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet
a worker who wipes