satisfy vs fill

satisfy is not a noun while fill is a noun.

Word	Noun	Adjective	Verb	Adverb
satisfy	No	No	Yes	No
fill	Yes	No	Yes	No

As verbs, satisfy and fill are synonyms defined as:

satisfy and fill: fill, satisfy or meet a want or need or condition or restriction

Other synonyms of satisfy include conform to, fit, fulfil, fulfill, meet.

As verbs, fill is a hypernym of satisfy; that is, fill is a word with a broader meaning than satisfy:

Other hypernyms of satisfy include conform to, fit, fulfil, fulfill, meet, satisfy.

satisfy (noun)	fill (noun)
	a quantity sufficient to satisfy
	any material that fills a space or container

satisfy (verb)	fill (verb)
fill, satisfy or meet a want or need or condition or restriction	become full
make happy or satisfied	make full, also in a metaphorical sense
meet the requirements or expectations of	plug with a substance
	fill to satisfaction
	eat until one is sated
	fill, satisfy or meet a want or need or condition or restriction
	assume, as of positions or roles
	appoint someone to (a position or a job)
	occupy the whole of