back door Meaning, Definition & Usage

  1. noun a secret or underhand means of access (to a place or a position)
    backdoor.
    • he got his job through the back door
  2. noun an undocumented way to get access to a computer system or the data it contains
    backdoor.
  3. noun an entrance at the rear of a building
    backdoor; back entrance.

WordNet


Back" door"
Definitions
  1. A door in the back part of a building; hence, an indirect way. Atterbury.

Webster 1913