shipway vs slipway

shipway and slipway both are nouns.

Word	Noun	Adjective	Verb	Adverb
shipway	Yes	No	No	No
slipway	Yes	No	No	No

As nouns, shipway and slipway are synonyms defined as:

shipway and slipway: structure consisting of a sloping way down to the water from the place where ships are built or repaired

Other synonyms of shipway include ways.

shipway (noun)	slipway (noun)
structure consisting of a sloping way down to the water from the place where ships are built or repaired	structure consisting of a sloping way down to the water from the place where ships are built or repaired
a canal large enough for seagoing vessels