seer vs oracle

seer and oracle both are nouns.

Word	Noun	Adjective	Verb	Adverb
seer	Yes	No	No	No
oracle	Yes	No	No	No

As nouns, seer and oracle are synonyms defined as:

Other synonyms of seer include prophesier, prophet, vaticinator.

seer (noun)	oracle (noun)
a person with unusual powers of foresight	a shrine where an oracular god is consulted
an authoritative person who divines the future	a prophecy (usually obscure or allegorical) revealed by a priest or priestess; believed to be infallible
an observer who perceives visually	an authoritative person who divines the future