What does the word adjoining mean?

Usage examples for adjoining

  1. About thirty armed men then entering, slew the rest of the guards, and broke open the adjoining gate, when a body of troops, in regular array, instantly rushed in. – The History of Rome; Books Nine to Twenty-Six by Titus Livius
  2. And she would sometimes amuse herself by trying roll after roll on the piano- player, until George, perhaps trying to read in the adjoining library, was almost frantic. – Poor, Dear Margaret Kirby and Other Stories by Kathleen Norris
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