(a mass of) white or grey water vapour floating in the sky

mass of water particles in air

a thin coating or covering; a series of photographs that is shown quickly on a screen so that the people, objects etc in them appear to be moving

coating, tissue; mist

vapour in the atmosphere at or near the earth's surface, thicker than mist and difficult to see through

heavy mist that reduces visibility

thin cloudy smoke or mist

cloudy air

(occasion when there is, an area with) water vapour in the air, at or near the earth's surface, less thick than fog

film, vapor