auspex vs vaticinator

auspex and vaticinator both are nouns.

Word	Noun	Adjective	Verb	Adverb
auspex	Yes	No	No	No
vaticinator	Yes	No	No	No

As nouns, vaticinator is a hypernym of auspex; that is, vaticinator is a word with a broader meaning than auspex:

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

Other hypernyms of auspex include oracle, prophesier, prophet, seer.

auspex (noun)	vaticinator (noun)
(ancient Rome) a religious official who interpreted omens to guide public policy	an authoritative person who divines the future