godparent vs sponsor

godparent and sponsor both are nouns.

Word	Noun	Adjective	Verb	Adverb
godparent	Yes	No	No	No
sponsor	Yes	No	Yes	No

As nouns, sponsor is a hypernym of godparent; that is, sponsor is a word with a broader meaning than godparent:

Other hypernyms of godparent include patron, supporter.

godparent (noun)	sponsor (noun)
a person who sponsors someone (the godchild) at baptism	someone who supports or champions something
	an advocate who presents a person (as for an award or a degree or an introduction etc.)

godparent (verb)	sponsor (verb)
	assume sponsorship of
	assume responsibility for or leadership of
	do one's shopping at; do business with; be a customer or client of