fan out vs mantle

fan out is not a noun while mantle is a noun.

Word	Noun	Adjective	Verb	Adverb
fan out	No	No	Yes	No
mantle	Yes	No	Yes	No

As verbs, mantle is a hyponym of fan out; that is, mantle is a word with a more specific, narrower meaning than fan out:

Other hyponyms of fan out include percolate, creep, bleed, run.

fan out (noun)	mantle (noun)
	a sleeveless garment like a cloak but shorter
	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

fan out (verb)	mantle (verb)
move outward	cover like a mantle
	spread over a surface, like a mantle