emigre vs emigrant

emigre and emigrant both are nouns.

Word	Noun	Adjective	Verb	Adverb
emigre	Yes	No	No	No
emigrant	Yes	No	No	No

As nouns, emigre and emigrant are synonyms defined as:

emigre and emigrant: someone who leaves one country to settle in another

Other synonyms of emigre include emigree, outgoer.

emigre (noun)	emigrant (noun)
someone who leaves one country to settle in another	someone who leaves one country to settle in another