- a building with equipment for grinding grain into flour that is driven by the power of the wind turning long arms (called sails)Topics Buildingsc1, Farmingc1
- a tall, thin structure with parts that turn round, used to change the power of the wind into electricity
- (British English) (North American English pinwheel)a toy with curved plastic parts that form the shape of a flower that turns round on the end of a stick when you blow on it
Idioms
See windmill in the Oxford Advanced American Dictionarytilt at windmills
- to waste your energy attacking imaginary enemies
Check pronunciation:
windmill