pen vs spell

pen and spell both are nouns.

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

pen (noun)	spell (noun)
female swan	a verbal formula believed to have magical force
a writing implement with a point from which ink flows	a psychological state induced by (or as if induced by) a magical incantation
an enclosure for confining livestock	a time period for working (after which you will be relieved by someone else)
a correctional institution for those convicted of major crimes	a period of indeterminate length (usually short) marked by some action or condition
a portable enclosure in which babies may be left to play

pen (verb)	spell (verb)
produce a literary work	take turns working
	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