By ahmedus

2018-08-10 10:49:21 8 Comments

The definition on the Oxford Dictionary is a little bit confusing for me. The dictionary doesn't call it a proper noun, but the first letter is capitalised in the example.

Since I know the Underground as a transportation system specific to a place (e.g. London), I would expect it to be a proper noun. Checking the dictionary didn't help me.



  1. (often the Underground) British An underground railway, especially the one in London.

‘travel chaos on the Underground’

Is it a proper noun or a common noun?


@Peter Shor 2018-08-10 11:04:41

The definition does not say that the word "underground" is specific to London.

"The Underground" in London is a proper noun (that's why it's capitalized).
"The Metro" in Paris is a proper noun (again, that's why it's capitalized).

If you're talking about underground train systems in general, what word do you use in England? You can't use "subway" because it means something different. So you use "underground" or "metro" — they're both common nouns in this usage.

If you ask whether anybody actually uses "underground" for anything other than the system in London, it seems to be incredibly rare. But the dictionary definition clearly suggests that this is one possible usage, and it would be this usage that is a common noun rather than a proper noun.

@Michael Harvey 2018-08-10 12:46:16

@Peter Shor, there is only one Underground in Britain - it is in London. There is a Subway in Glasgow. These are underground railway systems or classic "metros". There is a Metro in Tyne and Wear, which is a light rail system.

@Peter Shor 2018-08-10 12:56:23

@MichaelHarvey: The common noun would usually be used when talking about underground train systems in general, not when talking about one in a specific city. For example, from Google books: "(AST) has gained broad experience in the design and implementation of undergrounds in major Italian and European cities; these works often interact with sites and structures belonging to the historic and artistic heritage."

@Michael Harvey 2018-08-10 13:10:47

Did you notice my capitalisation?

@Michael Harvey 2018-08-10 13:16:07

Emilio Bilotta, ‎Alessandro Flora, ‎Stefania Lirer are not English names; I suspect they are Italian. The use of 'underground' as a generic term is unusual in Britain.

@Peter Shor 2018-08-10 13:17:26

Link here. I suspect most native English speakers in the U.K. would use "metro" for this meaning today, but the dictionary is also supposed to cover English as it was used earlier this century.

@Peter Shor 2018-08-10 13:24:44

For example, The Story of Tunnels by Archibald Black (1937), published in New York, contains the quote hence they had nothing in common with the modern undergrounds and subway systems of London and other cities.

@Michael Harvey 2018-08-10 13:31:23

Archibald Black was an American. In Britain, (on the other side of the Atlantic), we rarely, if ever, speak of 'undergrounds' when we mean 'underground railways'.

@Peter Shor 2018-08-10 13:43:34

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