Dexterity (also called agility, reflexes, or quickness) is an attribute that represents how fast, agile and precise a character is.
In Dungeons & Dragons, Dexterity contributes to a character's armor class and is used to dodge certain attacks or effects. It is also used to make attacks at range or using certain melee weapons, as well as to move stealthily and to pick locks. It is the main attribute of rogues and monks.