saint vs Buddha

saint and Buddha both are nouns.

Word	Noun	Adjective	Verb	Adverb
saint	Yes	No	Yes	No
Buddha	Yes	No	No	No

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

Other hyponyms of saint include fakeer, fakir, faqir, faquir.

saint (noun)	Buddha (noun)
person of exceptional holiness	founder of Buddhism (c 563-483 BC)
model of excellence or perfection of a kind; one having no equal	one who has achieved a state of perfect enlightenment
a person who has died and has been declared a saint by canonization

saint (verb)	Buddha (verb)
declare (a dead person) to be a saint
hold sacred