mantle vs mantlepiece

mantle and mantlepiece both are nouns.

Word	Noun	Adjective	Verb	Adverb
mantle	Yes	No	Yes	No
mantlepiece	Yes	No	No	No

As nouns, mantle and mantlepiece are synonyms defined as:

Other synonyms of mantle include chimneypiece, mantel, mantelpiece.

mantle (noun)	mantlepiece (noun)
a sleeveless garment like a cloak but shorter	shelf that projects from wall above fireplace
hanging cloth used as a blind (especially for a window)
shelf that projects from wall above fireplace
(zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell
the cloak as a symbol of authority
the layer of the earth between the crust and the core
anything that covers

mantle (verb)	mantlepiece (verb)
cover like a mantle
spread over a surface, like a mantle