hyphen

 In architecture, a hyphen is a connecting link between two larger building elements. It is typically found in Palladian architecture, where the hyphens form connections between a large corps de logis and terminating pavilions.[1]

The hyphen connecting the main house (right) to the west end pavilion (left) at Whitehall (Annapolis, Maryland)

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 Metasyntactic variable, which is released under the 
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