wind

WIND may refer to:

• WIND (spacecraft), a satellite and NASA science spacecraft launched in 1994
• WIND (AM), an American radio station based in Chicago. Illinois
• WIND Hellas, a Greek telecommunications provider
•  WIND Telecomunicazioni SpA, an Italian telecommunications provider
• WIND Mobile, a Canadian wireless telecommunications provider

Wind is the flow of gases on a large scale. On the surface of the Earth, wind consists of the bulk movement of air. In outer space, solar wind is the movement of gases or charged particles from the Sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space. Winds are commonly classified by their spatial scale, their speed, the types of forces that cause them, the regions in which they occur, and their effect. The strongest observed winds on a planet in the Solar System occur on Neptune and Saturn. Winds have various aspects, an important one being its velocity; another the density of the gas involved; another is the energy content or wind energy of a wind.