trolley vs tramcar

trolley and tramcar both are nouns.

Word	Noun	Adjective	Verb	Adverb
trolley	Yes	No	No	No
tramcar	Yes	No	No	No

As nouns, trolley and tramcar are synonyms defined as:

trolley and tramcar: a wheeled vehicle that runs on rails and is propelled by electricity

Other synonyms of trolley include streetcar, tram, trolley car.

trolley (noun)	tramcar (noun)
a wheeled vehicle that runs on rails and is propelled by electricity	a four-wheeled wagon that runs on tracks in a mine
	a wheeled vehicle that runs on rails and is propelled by electricity