jack-o'-lantern vs lantern

jack-o'-lantern and lantern both are nouns.

Word	Noun	Adjective	Verb	Adverb
jack-o'-lantern	Yes	No	No	No
lantern	Yes	No	No	No

As nouns, lantern is a hypernym of jack-o'-lantern; that is, lantern is a word with a broader meaning than jack-o'-lantern:

jack-o'-lantern (noun)	lantern (noun)
lantern carved from a pumpkin	light in a transparent protective case
a pale light sometimes seen at night over marshy ground