protective embankment vs scarp

protective embankment and scarp both are nouns.

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

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

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

Other synonyms of protective embankment include escarp, escarpment.

protective embankment (noun)	scarp (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