the weight of the air or atmosphere; a cause of weather
the thin layer of air surrounding the earth
the average condition of the weather at a place usually over a period of years
the amount of moisture in the atmosphere
the state of the atmosphere with respect to the temperature, atmospheric pressure, wind, and moisture at a certain place and time
the movement of air around the Earth; caused by the uneven heating of Earth's surface
the process by which water is renewed and reused on earth
in weather, the boundary between two air masses.