mantle

nouns

the cloak as a symbol of authority
"place the mantle of authority on younger shoulders"
is a type of (narrower)
an arbitrary sign (written or printed) that has acquired a conventional significance
the layer of the earth between the crust and the core
is a part of
the solid part of the earth consisting of the crust and outer mantle
is a type of (narrower)
a relatively thin sheetlike expanse or region lying over or under another
anything that covers
"there was a blanket of snow"
(zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell
shelf that projects from wall above fireplace
"in Britain they call a mantel a chimneypiece"
hanging cloth used as a blind (especially for a window)
a sleeveless garment like a cloak but shorter

verbs

spread over a surface, like a mantle
is a type of (narrower)
move outward
"The soldiers fanned out"
cover like a mantle
"The ivy mantles the building"
is a type of (narrower)
form a cover over
"The grass covered the grave"