If your neighborhood loses power, it’s good to have your own generator so you can keep the lights on. A generator is machine that produces power.

Generator can also mean someone who creates something. If you come up with lots of ideas, you are an idea generator. Not so helpful during a blackout unless you had the idea to get a portable generator. This kind of generator makes electricity out of some other type of power (like wind power) or fuel (like propane or gas). In Latin, generator means "begetter or producer," from generare, "to bring forth."

Definitions of generator
  1. noun
    someone who originates or causes or initiates something
    “he was the generator of several complaints”
    synonyms: author, source
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    someone who is a source of new words or new expressions
    type of:
    maker, shaper
    a person who makes things
  2. noun
    an apparatus that produces a vapor or gas
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    type of:
    apparatus, setup
    equipment designed to serve a specific function
  3. noun
    engine that converts mechanical energy into electrical energy by electromagnetic induction
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    an old term for an electric generator that produces alternating current (especially in automobiles)
    generator consisting of a coil (the armature) that rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armature
    magneto, magnetoelectric machine
    a small dynamo with a secondary winding that produces a high voltage enabling a spark to jump between the poles of a spark plug in a gasoline engine
    generator consisting of a steam turbine coupled to an electric generator for the production of electric power
    aerogenerator, wind generator, windmill
    generator that extracts usable energy from winds
    type of:
    motor that converts thermal energy to mechanical work
  4. noun
    an electronic device for producing a signal voltage
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    generator that produces sonic oscillations or alternating current
    pulse generator
    a generator of single or multiple voltage pulses; usually adjustable for pulse rate
    crystal oscillator, quartz oscillator
    an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal
    heterodyne oscillator, local oscillator
    an oscillator whose output heterodynes with the incoming radio signal to produce sum and difference tones
    a pulse generator used for echo sounding in sonar
    type of:
    electronic device
    a device that accomplishes its purpose electronically
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