master copy vs creation

master copy and creation both are nouns.

Word	Noun	Adjective	Verb	Adverb
master copy	Yes	No	No	No
creation	Yes	No	No	No

As nouns, creation is a hypernym of master copy; that is, creation is a word with a broader meaning than master copy:

master copy: an original creation (i.e., an audio recording) from which copies can be made
creation: an artifact that has been brought into existence by someone

master copy (noun)	creation (noun)
an original creation (i.e., an audio recording) from which copies can be made	the human act of creating
	the act of starting something for the first time; introducing something new
	an artifact that has been brought into existence by someone
	the event that occurred at the beginning of something
	everything that exists anywhere