immigration

nouns

migration into a place (especially migration to a country of which you are not a native in order to settle there)
is derived from
is derived from
the body of immigrants arriving during a specified interval
"the increased immigration strengthened the colony"
is derived from
is derived from
is a type of (narrower)
a group of persons associated by some common tie or occupation and regarded as an entity
"the whole body filed out of the auditorium"; "the student body"; "administrative body"