Definition of "enabler"

enabler

noun
plural enablers
1. One who or that which helps something to happen.
  Quotations
  The computer is an essential enabler of the conversation.
  2007, Andrew Sears, Julie A. Jacko, The Human-Computer Interaction Handbook, page 310
  The introduction of 33 bi-mode trains from 2023 will be an enabler for electrification of the Midland Main Line, claims East Midlands Railway Commercial Director Chris Wright.
  2021 January 27, Richard Clinnick, “Network News: Electrification can be enabled by Class 810s - EMR”, in RAIL, issue 923, page 12
2. One who encourages a bad habit in another (typically drug addiction) by their behaviour.
  Quotations
  In business, due to the stigma of alcoholism, enablers have their jobs and incomes at stake if their boss's secret is uncovered.
  2004, Doug Thorburn, How to Spot Hidden Alcoholics, page 34
3. One who gives someone else the power to behave in a certain way.