Windmill
/wˈɪˌndmɪl/
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Definition
(noun) A machine which translates linear motion of wind to rotational motion by means of adjustable vanes called sails.
Sentence Examples
I had never seen a windmill until I visited the Netherlands.
Napoleon's headquarters were in an unused windmill.
CEFR Practice Quiz
The ancient wooden ____ stood on the hill, its large sails turning slowly in the steady and very light breeze today.