blanket

bedding that keeps a person warm in bed; "he pulled the covers over his head and went to sleep"

anything that covers; "there was a blanket of snow"

a layer of lead surrounding the highly reactive core of a nuclear reactor

cover as if with a blanket; "snow blanketed the fields"

form a blanket-like cover (over)

broad in scope or content; "across-the-board pay increases"; "an all-embracing definition"; "blanket sanctions against human-rights violators"; "an invention with broad applications"; "a panoptic study of Soviet nationality"- T.G.Winner; "granted him wide powers"