The term “Millwall tube station” does not correspond to an established or operational underground railway station within the London Transport network as documented by reliable sources. No official records, historical maps, or contemporary transit publications identify a station by this name. Consequently, the phrase is not widely recognized as a distinct concept in transportation literature.
The name appears to combine “Millwall,” a district on the Isle of Dogs in East London, with “tube station,” a colloquial term for stations on the London Underground. It is possible that the term could be used informally to refer to a hypothetical or proposed Underground station serving the Millwall area, but no concrete plans, proposals, or construction projects bearing this specific designation have been confirmed in publicly available sources.
In the absence of verifiable information, any further description of a “Millwall tube station” would be speculative.