changeover vs transmutation

changeover and transmutation both are nouns.

Word	Noun	Adjective	Verb	Adverb
changeover	Yes	No	No	No
transmutation	Yes	No	No	No

As nouns, transmutation is a hypernym of changeover; that is, transmutation is a word with a broader meaning than changeover:

Other hypernyms of changeover include shift, transformation.

changeover (noun)	transmutation (noun)
an event that results in a transformation	an act that changes the form or character or substance of something
	a qualitative change
	(physics) the change of one chemical element into another (as by nuclear decay or radioactive bombardment)