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) calm air, calm (wind moving at less than 1 knot; 0 on the Beaufort scale)
S: (n) breeze, zephyr, gentle wind, air (a slight wind (usually refreshing)) "the breeze was cooled by the lake"; "as he waited he could feel the air on his neck"
S: (n) tailwind (wind blowing in the same direction as the path of a ship or aircraft)
S: (n) doldrums (a belt of calms and light winds between the northern and southern trade winds of the Atlantic and Pacific)
S: (n) languor (oppressively still air) "the afternoon was hot, quiet, and heavy with languor"; "Summer shows all the languor of a hot, breezeless day as the dancer lazily brushes her hand over her brow"