World

"World" was a term for someone's reality or universe — the environment they inhabited and experienced. As such, someone's "world" could be used to refer to their native universe or dimension, such that parallel universes were sometimes called "parallel worlds", (TV:, ) but also, in a common figurative use, to refer to someone's planet of origin; for example, the Eleventh Doctor described Earth as "your world" to Amy Pond (TV: ) and the War Chief described the Galaxy as containing "a thousand inhabited worlds". (TV: )

History
In the 20th century, the Grey Man and the Mandelbrot Set sometimes referred to the real universe (Plane Physical) as "the world" in relation to Cathedral which existed on another plane. (PROSE: )

In March 2005, he Ninth Doctor told Jenn if she tried to skip her ICT A-Level the whole world would be doomed. (PROSE: )

The new webmaster of Who is Doctor Who? after Clive's death noticed that coverage of the Dummy Massacre was disappearing from World Media by 2 April 2005. He also sought to prove the truth about the Doctor to "the world" (PROSE: )

After the defeat of the Slitheen family on 7 March 2006, Mickey Smith (TV: ) wrote on his website the morning after about how he was watching the world forget the events that unfolded in the past couple of days. He also mentioned how the Ninth Doctor saved the world. (PROSE: )

A week later, he wrote that the Government and the world's media was conspiring to deny the event. In an interview with Henry Van Statten, Van Statten told Mickey that as he could not physically travel to an alien world, the intial experience of having moondust run through his hands was "ultimate". (PROSE: )

By 2007, one of David R's interests was "revealing the truth about [what is] really happening in the world". (PROSE: )

The Saxon Master proclaimed that hell was "[his] kind of world". (TV: )

In the 26th century, Eric Klieg wanted to use Cyber-Technology to become "master of the world." (TV: )

Undated events
On Planet Bedtime Stories, after the Fourteenth Doctor asked an audience where they would travel to if they had a spaceship, if, maybe, they would go to another world. (TV: )