spell vs jinx

spell and jinx both are nouns.

Word	Noun	Adjective	Verb	Adverb
spell	Yes	No	Yes	No
jinx	Yes	No	Yes	No

As nouns, jinx is a hyponym of spell; that is, jinx is a word with a more specific, narrower meaning than spell:

Other hyponyms of spell include conjuration, incantation, curse, hex, whammy, hocus-pocus.

As verbs, jinx is a hypernym of spell; that is, jinx is a word with a broader meaning than spell:

spell: place under a spell
jinx: cast a spell over someone or something; put a hex on someone or something

Other hypernyms of spell include bewitch, enchant, glamour, hex, witch.

spell (noun)	jinx (noun)
a verbal formula believed to have magical force	an evil spell
a psychological state induced by (or as if induced by) a magical incantation	a person believed to bring bad luck to those around him
a time period for working (after which you will be relieved by someone else)
a period of indeterminate length (usually short) marked by some action or condition

spell (verb)	jinx (verb)
take turns working	foredoom to failure
orally recite the letters of or give the spelling of	cast a spell over someone or something; put a hex on someone or something
indicate or signify
place under a spell
write or name the letters that comprise the conventionally accepted form of (a word or part of a word)
relieve (someone) from work by taking a turn