Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun windmill

2 senses of windmill

Sense 1
windmill -- (a mill that is powered by the wind)
       => mill, grinder, milling machinery -- (machinery that processes materials by grinding or crushing)

Sense 2
windmill, aerogenerator, wind generator -- (generator that extracts usable energy from winds)
       => generator -- (engine that converts mechanical energy into electrical energy by electromagnetic induction)