rampart vs embankment

rampart and embankment both are nouns.

Word	Noun	Adjective	Verb	Adverb
rampart	Yes	No	No	No
embankment	Yes	No	No	No

As nouns, embankment is a hypernym of rampart; that is, embankment is a word with a broader meaning than rampart:

rampart: an embankment built around a space for defensive purposes
embankment: a long artificial mound of stone or earth; built to hold back water or to support a road or as protection

rampart (noun)	embankment (noun)
an embankment built around a space for defensive purposes	a long artificial mound of stone or earth; built to hold back water or to support a road or as protection