migrant vs colonist

migrant and colonist both are nouns.

Word	Noun	Adjective	Verb	Adverb
migrant	Yes	Yes	No	No
colonist	Yes	No	No	No

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

Other hyponyms of migrant include departer, goer, leaver, emigrant, emigre, emigree, outgoer, evacuee, immigrant, rusher, settler.

migrant (noun)	colonist (noun)
traveler who moves from one region or country to another	a person who settles in a new colony or moves into new country

migrant (adjective)	colonist (adjective)
habitually moving from place to place especially in search of seasonal work