Activate (verb)

  1. To make something active or operational.
  2. To cause something to begin to work or function.

Origin:

Mid 19th century: from latin activus "active" (from agere "do") + -ate.

Examples:

  1. The button activates the machine.
  2. The remote activates the TV.
  3. The medicine activates the immune system.
  4. The code activates the software.
  5. The switch activates the lights.
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