Immigrate is a verb.
Lots of Slovaks migrate to the US in 1900-1920. They immigrate because Slovak was a part of Austrian-Hungarian Empire where was economic crisis.
the island of La Réunion is part of France. The conditions to immigrate are the same as those to get in mainland France.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "breezy" is an adjective.