Weight

Weight was the measure of the amount of gravity acting on a person or object.

In some cultures, weight was synonymous with fat. (TV: Partners in Crime) On 3 January, birth rates would skyrocket across the Adipose nursery worlds as host species tried to stick to their New Year's resolutions to lose weight. (PROSE: Time Traveller's Diary)

Individuals
On the Who is Doctor Who? website in early 2006, the webmaster believed there was a government conspiracy growing, as MP Joseph Green recently had an unexplained weight gain. He also questioned if the government was truly composed of fat cats, feeling that it was time for a change. (PROSE: Rose sighting confirmed)

One of the Monks weighed 93.5 pounds. (TV: The Pyramid at the End of the World)

In the Shadow World, another of the Monks weighed 94.6 pounds. (TV: Extremis)

Xiaolian weighed 126.7 pounds. (TV: The Pyramid at the End of the World)

Bill Potts weighed 130.2 pounds. (TV: The Pyramid at the End of the World)

The Secretary General weighed 140.1 pounds. (TV: The Pyramid at the End of the World)

Don Brabbit weighed 141.0 pounds. (TV: The Pyramid at the End of the World)

In the Shadow World, Cardinal Angelo weighed 141.1 pounds. (TV: Extremis)

In the Shadow World, the President of the United States of America weighed 163.2 pounds. (TV: Extremis)

In the Shadow World, Piero weighed 165.4 pounds. (TV: Extremis)

In the Shadow World, one member of the Pope's entourage weighed 168.4 pounds. (TV: Extremis)

In the Shadow World, one member of the Pope's entourage weighed 170.5 pounds. (TV: Extremis)

In the Shadow World, one member of the Pope's entourage weighed 174.7 pounds. (TV: Extremis)

A Commander weighed 176.3 pounds. (TV: The Pyramid at the End of the World)

Ilya Svyatoslavovich weighed 176.4 pounds. (TV: The Pyramid at the End of the World)

In the Shadow World, one member of the Pope's entourage weighed 179.0 pounds. (TV: Extremis)

In the Shadow World, one member of the Pope's entourage weighed 183.7 pounds. (TV: Extremis)

In the Shadow World, one member of the Pope's entourage weighed 187.5 pounds. (TV: Extremis)

Nardole weighed 216.1 pounds. (TV: The Pyramid at the End of the World)

Objects
In a metaphorical sense, the webmaster of Who is Doctor Who? wanted the police to open their eyes to the "weight of evidence" that proved he wasn't responsible for (PROSE: Rose sighting confirmed) the disappearance of Rose Tyler. (TV: Aliens of London, etc.)

The egg laid by the creature which hatched from the Moon weighed 1.3 billion tonnes. (TV: Kill the Moon)

TARDISes could adjust their "relative gravity" to make themselves lighter. (TV: Flatline) The Tenth Doctor estimated his ship's true weight was comparable to that of a small moon, or at least several Fijis. (COMIC: Firelight) The Twelfth Doctor opined that his ship's true weight would "fracture the surface of the Earth" upon landing. (TV: Flatline) He later encountered a TARDIS whose weight threatened to destroy the planet. (COMIC: Playing House)