escarpment vs protective embankment

escarpment and protective embankment both are nouns.

Word	Noun	Adjective	Verb	Adverb
escarpment	Yes	No	No	No
protective embankment	Yes	No	No	No

As nouns, escarpment and protective embankment are synonyms defined as:

escarpment and protective embankment: a steep artificial slope in front of a fortification

Other synonyms of escarpment include escarp, scarp.

escarpment (noun)	protective embankment (noun)
a steep artificial slope in front of a fortification	a steep artificial slope in front of a fortification
a long steep slope or cliff at the edge of a plateau or ridge; usually formed by erosion