S: (n) wind, air current, current of air (air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure) "trees bent under the fierce winds"; "when there is no wind, row"; "the radioactivity was being swept upwards by the air current and out into the atmosphere"
S: (n) air (a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of) "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"