Meaning & Definition of word "Vane"

Vane

/veɪn/

noun:

  • 1. A device that shows the direction of the wind, typically consisting of a flat blade that is mounted so that it can rotate freely.
    • Example: The weather vane on the barn roof spun wildly in the strong gusts of wind.
  • 2. A flat or blade-like structure that is used to guide or indicate the direction of something, such as a sail or a turbine.
    • Example: The wind turbine's vane automatically adjusts to capture the maximum amount of wind energy.
  • 3. A part of a mechanical device that is used to channel airflow or liquid flow, such as in a fan.
    • Example: 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 of vane

Meaning: To flip-flop

Example Sentence: He's always vane, changing his opinion on a whim.