spell vs hex

spell and hex both are nouns.

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

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

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

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

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

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

spell (noun)	hex (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 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 (adjective)	hex (adjective)
	of or pertaining to a number system having 16 as its base

spell (verb)	hex (verb)
take turns working	cast a spell over someone or something; put a hex on someone or something
orally recite the letters of or give the spelling of
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