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duplex house

American  

noun

  1. a house having separate apartments for two families, especially a two-story house having a complete apartment on each floor and two separate entrances.


duplex house British  

noun

  1. Also called (US): semidetached.  a house divided into two separate dwellings

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012