Tardis:TARDIS

The acronym "TARDIS" shall be rendered unitalicised and in all uppercase when it refers generally to the time-travel devices invented by the Time Lords, as well was when it denotes the Doctor's TARDIS specifically.

"Tardis" shall refer to the name of this wiki, as is obviously implied by the project namespace, Tardis:

Yes, the first 30 years of Doctor Who tie-in material, not to mention modern day dictionaries, actively prefer the style "Tardis", but it's necessary to maintain a strict distinction between the in-universe objects and the name of the wiki.

(Tardis, which concerns an in-universe counterpart of this very sight, is naturally an exception to this rule, and the only context in which "Tardis" is acceptable within the main namespace.)

Not italicised
Despite the predilection of 1960s Doctor Who fiction to italicise Tardis as if it were the name of a unique ship, please don't italicise it on this wiki (except in the rare cases when directly reporting, in a Behind the scenes section, on alternative stylings in licensed sources). TARDIS is the name of a type of object, which most accounts present as being as commonplace as "airplane" and "car" are in the real world. There are many, many TARDISes out there, so it would be incorrect by most English language standards to italicise the name in most situations.