trolleybus vs trolley coach

trolleybus and trolley coach both are nouns.

Word	Noun	Adjective	Verb	Adverb
trolleybus	Yes	No	No	No
trolley coach	Yes	No	No	No

As nouns, trolleybus and trolley coach are synonyms defined as:

trolleybus and trolley coach: a passenger bus with an electric motor that draws power from overhead wires

Other synonyms of trolleybus include trackless trolley.

trolleybus (noun)	trolley coach (noun)
a passenger bus with an electric motor that draws power from overhead wires	a passenger bus with an electric motor that draws power from overhead wires