A place where wind is concentrated or strong due to terrain or buildings, such as a mountain pass or wind gap

(metaphorical) A position where one is exposed to intense pressure, public scrutiny, or a difficult situation; at the heart of the action.

(metaphorical) A current craze or investment boom; a sector where growth is fast and opportunities are plentiful.

An opening or nozzle through which air is forced into a furnace or forge

An opening through which air is admitted to or expelled from a confined space