noun
generator
JEN-uh-ray-ter/ˈdʒenəreɪtər/
An agent that produces something from available inputs.
The portable generator converts mechanical energy into electricity for the lamp.

Etymology
A generator was originally a begetter or producer, especially a person. The same producer role was extended to machines that generate power, including electrical energy.
In context
Now, just like an electric generator, if you move a coil of wire in a magnetic field you're gonna generate a voltage.
More examples
- The password generator combines letters, numbers, and symbols.
- Tourism is a major generator of revenue for the town.
- Every element in this group is a power of one generator.
Forms
generator · generators
generate verb — To produce or bring something into existence.
generation noun — The process of producing or creating something.
Similar words
- producer
- Emphasizes who or what makes something, rather than converting inputs.
- maker
- Usually refers to a person or company producing tangible things.