windscreen wiper vs windshield wiper

windscreen wiper and windshield wiper both are nouns.

Word	Noun	Adjective	Verb	Adverb
windscreen wiper	Yes	No	No	No
windshield wiper	Yes	No	No	No

As nouns, windscreen wiper and windshield wiper are synonyms defined as:

windscreen wiper and windshield wiper: a mechanical device that cleans the windshield

Other synonyms of windscreen wiper include wiper, wiper blade.

windscreen wiper (noun)	windshield wiper (noun)
a mechanical device that cleans the windshield	a mechanical device that cleans the windshield