seer vs augur

seer and augur both are nouns.

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

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

seer: an authoritative person who divines the future
augur: (ancient Rome) a religious official who interpreted omens to guide public policy

Other hyponyms of seer include auspex, prophetess, sibyl.

seer (noun)	augur (noun)
a person with unusual powers of foresight	(ancient Rome) a religious official who interpreted omens to guide public policy
an authoritative person who divines the future
an observer who perceives visually

seer (verb)	augur (verb)
	indicate, as with a sign or an omen
	predict from an omen