Knight

A knight was an armored, mounted warrior serving a lord in feudal societies. In the Realms, the term could also refer to, among other things:
* Eldritch knight, a warrior trained equally in the arts of combat and magic,
* Triadic knight, a warrior worshiping the Triad as a unit,
* Purple Dragon knight, a member of the Purple Dragons of Cormyr,
* Knight of the Blue Moon, an elite knight of Waterdeep,
* Knight of the Flying Hunt, an elite defender of Nimbral,
* Knight in Silver, a member of the army of Silverymoon
* Knight of Holy Judgment, a paladin in service to Tyr,
* Knight of the Merciful Sword, another type of paladin in service to Tyr,
* Knight of Ilmater, a paladin in service to Ilmater,
* Knight of Myth Drannor, a member of a famous adventuring company,
* Knight of Samular, another type of paladin in service to Tyr,
* Knight of the Black Gauntlet, a crusader in service to Bane,
* Knight of the Bleeding Shield, a member of another order in service to Ilmater,
* Knight of the Eternal Dragon, someone dedicated to the destruction of Xavarathimius,
* Knight of the Golden Star, a warrior in service to Corellon Larethian,
* Knight of the Weave, a warrior worshiping the Weave itself,
* Knight of the Shield, a member of a secret society based in the Lands of Intrigue,
* Vengeance knight, an elite fighter in service to the Knights of the Shield,
* Silverhair Knight, a priest in service to Eilistraee,
* Death knight, a powerful undead warrior,
* Darksong Knight, another kind of warrior in service to Eilistraee,
* Thayan knight, a general of the army of Thay
* Griffon Knight, a defender of the town of Alamontyr,
* Knight of the North, a secret society of adventurers from the Moonsea region,
* Warlock Knight, one of the lords of Vaasa, or
* Moon Knight, a warrior in service to Sehanine Moonbow.
It could also refer to a specific type of character in various editions of the Dungeons & Dragons rules:
* Elven knights, a kit in 2 edition
* Knight (class), a class in 3 edition,
* Knight (build), a fighter build in 4 edition, or
* Knight (NPC), a generic nonplayer character in 5 edition.