Blizzard Entertainment, the makers of World of Warcraft games, generally uses the term "region" to describe the major continental and geographical groups of realms or servers (i.e. North American, European, Korean, Taiwanese, etc.).[1][2]
In most Warcraft sources
On the old Official website, region was the term used for the geographical sub-areas of continents usually called zones.[3] Since the transition to the Battle.net-based community sites, the term has been almost completely abandoned when referring to in-game or lore geography.
Also, region is an alternate term used for the individual zones within a continent as in the published lore, novels, RPG (), etc.
In the various editions of World of Warcraft Guide, regions are a subcategory within the lands (lands being continents of Kalimdor and the Eastern Kingdoms). Regions are continents, which are comprised of a varying amount of zones (zones are like countries or states).WoWOSG 9, 212