Omniverse

The omniverse or the all was the totality of existence, every individual multiverse. The time vortex of the Doctor's own multiverse merged with the omniversal spectrum at the Glory, a device at the spectrum's focal point that maintained the structure of the omniverse as long as there was a living conciousness to direct it. (COMIC: The Glorious Dead)

The Seventh Doctor used the term to refer to his universe/multiverse in realtion to the amount of mass and energy needed by the universe to exist, explaining why alternate timelines could not exist due to the damage they would cause. He called the Silurian Earth reality an unnatural branching of the omniverse, artificially created as opposed to Arthur's World which was natural. The Guardians of Time were one of the powers of the omniverse who could do anything, bound only by laws of conduct. (PROSE: No Future)