service entrance vs entranceway

service entrance and entranceway both are nouns.

Word	Noun	Adjective	Verb	Adverb
service entrance	Yes	No	No	No
entranceway	Yes	No	No	No

As nouns, entranceway is a hypernym of service entrance; that is, entranceway is a word with a broader meaning than service entrance:

service entrance: an entrance intended for the use of servants or for delivery of goods and removal of refuse
entranceway: something that provides access (to get in or get out)

Other hypernyms of service entrance include entrance, entree, entry, entryway.

service entrance (noun)	entranceway (noun)
an entrance intended for the use of servants or for delivery of goods and removal of refuse	something that provides access (to get in or get out)