embankment vs levee

embankment and levee both are nouns.

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

As nouns, levee is a hyponym of embankment; that is, levee is a word with a more specific, narrower meaning than embankment:

embankment: a long artificial mound of stone or earth; built to hold back water or to support a road or as protection
levee: an embankment that is built in order to prevent a river from overflowing

Other hyponyms of embankment include bulwark, rampart, wall.

embankment (noun)	levee (noun)
a long artificial mound of stone or earth; built to hold back water or to support a road or as protection	an embankment that is built in order to prevent a river from overflowing
	a pier that provides a landing place on a river
	a formal reception of visitors or guests (as at a royal court)