scarp vs protective embankment

scarp and protective embankment both are nouns.

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

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

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

Other synonyms of scarp include escarp, escarpment.

scarp (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