downstairs Meaning, Definition & Usage

  1. adjective on or of lower floors of a building
    downstair.
    • the downstairs (or downstair) phone
  2. adverb on a floor below
    below; down the stairs; on a lower floor.
    • the tenants live downstairs

WordNet

Down"stairs adverb
Definitions
  1. Down the stairs; to a lower floor. -- a. Below stairs; as, a downstairs room.

Webster 1913