A wind direction indicator is a device that helps determine the direction of the wind, also known as a wind vane. It is designed to be sensitive to even slight changes in wind direction and provide accurate readings. Other synonyms that can be used instead of a wind direction indicator include windsock, wind gauge, or wind pointer. These tools are essential for industries such as aviation, agriculture, and construction, as they rely on accurate wind data to ensure safety and efficiency. Whether it is called a wind direction indicator or a wind vane, it is an important instrument used to measure the direction of the wind.