All 5 Uses

discord
in
The Iliad by Homer - (translated by: Butler)
(Auto-generated)

...the Trojans held a council, angry and full of discord,
Book 7 *

discord = conflict or disagreement -- especially among those expected to cooperate
She it was that went about among them and flung down discord to the waxing of sorrow with even hand between them.†
Book 4
You are still young—you might be the youngest of my own children—still you have spoken wisely and have counselled the chief of the Achaeans not without discretion; nevertheless I am older than you and I will tell you everything; therefore let no man, not even King Agamemnon, disregard my saying, for he that foments civil discord is a clanless, hearthless outlaw.†
Book 9
AND now as Dawn rose from her couch beside Tithonus, harbinger of light alike to mortals and immortals, Jove sent fierce Discord with the ensign of war in her hands to the ships of the Achaeans.†
Book 11
Discord was glad as she beheld them, for she was the only god that went among them; the others were not there, but stayed quietly each in his own home among the dells and valleys of Olympus.†
Book 11

Definitions:

(1) (discord as in: discord amongst the group)
conflict or disagreement -- especially among those expected to cooperate

or (especially in the form discordant):

seeming different or wrong in context
(2) (discord as in: discordant music)
unpleasant sound -- especially a combination of sounds that sound wrong together (though sometimes done intentionally in music)
(3) (meaning too rare to warrant focus)