jack-o'-lantern vs friar's lantern

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

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

As nouns, jack-o'-lantern and friar's lantern are synonyms defined as:

jack-o'-lantern and friar's lantern: a pale light sometimes seen at night over marshy ground

Other synonyms of jack-o'-lantern include ignis fatuus, will-o'-the-wisp.

jack-o'-lantern (noun)	friar's lantern (noun)
lantern carved from a pumpkin	a pale light sometimes seen at night over marshy ground
a pale light sometimes seen at night over marshy ground