All 4 Uses of

augur
in
The Iliad by Homer (translated by: Lang, Leaf, & Myers)

So spake he and sate him down; and there stood up before them Kalchas son of Thestor, most excellent far of augurs, who knew both things that were and that should be and that had been before, and guided the ships of the Achaians to Ilios by his soothsaying that Phoebus Apollo bestowed on him.†
Book 1

And the Mysians were led of Chromis and Ennomos the augur, yet with all his auguries warded he not black fate from him, but was vanguished by the hand of fleet-footed Aiakides in the river, when he made havoc of the Trojans there and of the rest.†
Book 2 *

Now had the Trojans been chased again by the Achaians, dear to Ares, up into Ilios, in their weakness overcome, but that Prism's son Helenos, far best of augurs, stood by Aineias' side and Hector's, and spake to them: "Aineias and Hector, seeing that on you lieth the task of war in chief of Trojans and Lykians, because for every issue ye are foremost both for fight and counsel, stand ye your ground, and range the host everywhither to rally them before the gates, ere yet they fall fleeing in their women's arms, and be made a rejoicing to the foe.†
Book 6

And he came to each and encouraged him with his words—Mesthles and Glaukos and Medon and Thersilochos and Asteropaios and Deisenor and Hippothoos and Phorkys and Chromios and the augur Ennomos—these encouraged he and spake to them winged words: "Listen, ye countless tribes of allies that dwell round about.†
Book 17

Definitions:

(1) (augur)
indicate or predict the future
(2) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

More rarely, augur may reference a person who predicts the future -- especially a religious official in ancient Rome.