Definition of TK in English:

TK

  • To come (used in journalists' shorthand to indicate that a particular detail will be added in the final version of an article)

    ‘the new lawsuit, filed TK in L.A. Superior Court, alleges that he approached Brown in the parking lot’
    ‘there are tk light bulbs in the chandelier in the chamber of the House of Representatives’
    ‘they succeeded in making minor modifications to the new law, but as of date TK the most troubling provisions remain’

Origin

1970s: apparently an alteration of TC in order to distinguish it from printable text.