[sem-ee-di-tacht, sem-ahy-]


partly detached.
of or relating to a house joined by a party wall to another house or row of houses.

Nearby words

  1. semicylinder,
  2. semidaily,
  3. semidarkness,
  4. semideify,
  5. semidesert,
  6. semidetached binary,
  7. semidiameter,
  8. semidiurnal,
  9. semidivine,
  10. semidome

Origin of semidetached

First recorded in 1855–60; semi- + detached

Related formssem·i·de·tach·ment, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for semi-detached

British Dictionary definitions for semi-detached



  1. (of a building) joined to another on one side by a common wall
  2. (as noun)they live in a suburban semidetached
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

Word Origin and History for semi-detached



in reference to houses, 1845, from semi- + past participle of detach (v.).

The "Detached House" bears its peculiar characteristic on its front; it stands alone, and nothing more can be said about it; but with the "semi-detached house" there is a subtle mystery, much to be marvelled at. Semi-detached! Have the party-walls between two houses shrunk, or is there a bridge connecting the two, as in Mr. Beckford's house in Landsdown Crescent, Bath? A semi-detached house may be a house with a field on one side and a bone-boiling factory on the other. Semi-detached may mean half-tumbling to pieces. I must inquire into it. ["Houses to Let," in "Household Words," March 20, 1852]
Online Etymology Dictionary, © 2010 Douglas Harper