Mob – Official Minecraft Wiki
Some of the many monsters that can spawn in the overworld. From left to right: Zombie, Spider, Enderman, Creeper, Skeleton, Drowned, Witch, Slime. A mob is an AI-driven game entity resembling a living creature. The term "mob" is short for "mobile entity".1 All mobs can be attacked and hurt (from falling, attacked by player or another mob, falling into the void, etc.), and have some form of ...