OBE: Out of Body EXPERIENCE

Nothing in that suggests they are not lucid dreams. They are experiences of being out of the body. Just like any flying object you can not identify is a UFO. It does not imply alien space ship.

With that in mind, here is the difference: Regular LDs take place in strange versions of the world, or even odder locations. You see right away that it is a dream and not real settings. While, in an LD that is OBE (real magical event or not) the setting seems very stable and is a familiar area in which you know the area. This is likely your house and surrounding yards. As you move through it the setting remains reasonably true to life and few bizarre dream like features exist.