Howling:What is a "universe"?

I was looking at some things on the wikia and I wasn't sure about the correct definitions of things when it comes to parallel universes and alternate dimensions and timelines. What is a universe and what is a dimension, since it seems that they are used interchangibly. What are your thoughts on these definitions? Steed 20:30, May 18, 2010 (UTC)


 * The two articles Alternate timeline and Parallel universe are fairly instructive and interesting. Dimension also gives a breakdown of what it is. --Tangerineduel 05:21, May 19, 2010 (UTC)