goblin vs evil spirit

goblin and evil spirit both are nouns.

Word	Noun	Adjective	Verb	Adverb
goblin	Yes	No	No	No
evil spirit	Yes	No	No	No

As nouns, evil spirit is a hypernym of goblin; that is, evil spirit is a word with a broader meaning than goblin:

goblin: (folklore) a small grotesque supernatural creature that makes trouble for human beings
evil spirit: a spirit tending to cause harm

goblin (noun)	evil spirit (noun)
(folklore) a small grotesque supernatural creature that makes trouble for human beings	a spirit tending to cause harm