internationalist vs socialist

internationalist and socialist both are nouns.

Word	Noun	Adjective	Verb	Adverb
internationalist	Yes	Yes	No	No
socialist	Yes	Yes	No	No

As nouns, socialist is a hypernym of internationalist; that is, socialist is a word with a broader meaning than internationalist:

internationalist (noun)	socialist (noun)
an advocate of internationalism	a political advocate of socialism
a member of a socialist or communist international

internationalist (adjective)	socialist (adjective)
influenced by or advocating internationalism	advocating or following the socialist principles