'The tube' is London slang for the subway. walk along the street walk from one part of the street to another part.
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Clive'The tube' is London slang for the subway.Just to further confuse things, in the UK we do not commonly use "subway" to mean an underground railway. Instead, "subway" is a pedestrian underpass. The London system is called "the Underground" or, colloquially, "the Tube". I would say that "the Tube" is a couple of notches above slang.