master list

A "master list" refers to a comprehensive, primary, or controlling document containing all data elements of a specific type, often functioning as a single source of truth from which other sub-lists or specific datasets are generated. The term derives from the definition of "master" as a principal, controlling entity, or an original version from which copies are made (similar to a "master recording" or "master key"). It is commonly used in inventory management, real estate, and information technology to denote the central file against which others are checked.

The usage of the word "master" in technical and administrative contexts has become contested due to its historical association with chattel slavery. While "master list" does not typically imply a corresponding "slave list"—unlike the specific engineering concept of "master/slave" replication—many technology companies, academic institutions, and standards organizations are phasing out the term to promote inclusive language. Critics argue that even without the direct binary, the word evokes a history of non-consensual power dynamics and oppression. Conversely, those who continue to use the term often view it as standard industry terminology describing the hierarchy of data or objects rather than human relationships, noting that it remains deeply embedded in legacy systems and documentation.

Example:
"Before we send out the invitations, please cross-reference the RSVPs against the master list to ensure no duplicates exist."

Example:
"The IT department maintains a master list of all authorized devices connected to the corporate network."