Vane
/veɪn/
Meaning & Definition
noun
A device that shows the direction of the wind, typically consisting of a flat blade that is mounted so that it can rotate freely.
The weather vane on the barn roof spun wildly in the strong gusts of wind.
A flat or blade-like structure that is used to guide or indicate the direction of something, such as a sail or a turbine.
The wind turbine's vane automatically adjusts to capture the maximum amount of wind energy.
A part of a mechanical device that is used to channel airflow or liquid flow, such as in a fan.
The cooling system in the car relies on several vanes to direct airflow efficiently.
Etymology
Middle English, from Old French 'vane', of uncertain origin.
Common Phrases and Expressions
weather vane
A device that shows wind direction.
vane of fortune
A metaphorical term indicating changing fortunes.
turn like a weather vane
To change one's opinion or position frequently.
Related Words
wind
The natural movement of air.
turbine
A rotary engine driven by a current of fluid.
Slang Meanings
To flip-flop
He's always vane, changing his opinion on a whim.