bulwark vs Chinese Wall

bulwark and Chinese Wall both are nouns.

Word	Noun	Adjective	Verb	Adverb
bulwark	Yes	No	Yes	No
Chinese Wall	Yes	No	No	No

bulwark (noun)	Chinese Wall (noun)
a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away	a fortification 1,500 miles long built across northern China in the 3rd century BC; it averages 6 meters in width
an embankment built around a space for defensive purposes
a fencelike structure around a deck

bulwark (verb)	Chinese Wall (verb)
defend with a bulwark