if you mean what does the term mean, the covenant are an alliance of multiple alien races ( the sangheili, unggoy, jiralhanae, kig'yar, huragok, and the san' shyuum)
but if you mean what are their beliefs, all of them follow their religious figure, the prophets (san' shyuum). the prophets feel that humans are inferior and should be eradicated.
In Halo 3 the covenant does die, the covenant will never be in another Halo game.
The covenant is an alien species in halo including grunts and elites.
the biggest ship in halo is a covenant cruiser.
You cannot play as Covenant in the original Halo
it is when the covenant activate halo and destroy the humans and the flood
No, the only teams you can be in Halo Wars is the Marines and the Covenant
The Covenant are the main enemy of the Halo Franchise.
NOPE
In Halo 4 there are two species of enemy. The Covenant and the Prometheans. The Covenant consists of grunts, jackals, skirmishers, elites, and hunters. The Prometheans are the crawlers, knights, and watchers.
no... its before Halo 1 when the humans have just started fighting with the Covenant
No, the only teams you can be in Halo Wars are the Marines (humans) and the Covenant.
Yes, in Halo Wars you will be able to play as the Covenant. I dont know, however, if you will be able to play a story mode as the Covenant, but I know that you will be able to in Free Play and Xbox Live.