Definitions:
a visible mass of condensed watery vapour floating in the atmosphere, typically high above the general level of the ground

used to refer to a state or cause of gloom, suspicion, trouble, or worry

networked computing facilities providing remote data storage and processing services via the internet

(of the sky) become overcast or gloomy

make or become less clear or transparent

(of someone's face or eyes) show an emotion such as worry, sorrow, or anger