copy vs facsimile

copy and facsimile both are nouns.

Word	Noun	Adjective	Verb	Adverb
copy	Yes	No	Yes	No
facsimile	Yes	No	Yes	No

As nouns, facsimile is a hyponym of copy; that is, facsimile is a word with a more specific, narrower meaning than copy:

copy (noun)	facsimile (noun)
a thing made to be similar or identical to another thing	duplicator that transmits the copy by wire or radio
a reproduction of a written record (e.g. of a legal or school record)	an exact copy or reproduction
matter to be printed; exclusive of graphical materials
material suitable for a journalistic account

copy (verb)	facsimile (verb)
reproduce someone's behavior or looks	send something via a facsimile machine
make a replica of
reproduce or make an exact copy of
copy down as is