ferment vs change state

ferment is a noun but change state is not a noun.

Word	Noun	Adjective	Verb	Adverb
ferment	Yes	No	Yes	No
change state	No	No	Yes	No

As verbs, change state is a hypernym of ferment; that is, change state is a word with a broader meaning than ferment:

Other hypernyms of ferment include turn.

ferment (noun)	change state (noun)
a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol
a state of agitation or turbulent change or development
a substance capable of bringing about fermentation

ferment (verb)	change state (verb)
go sour or spoil	undergo a transformation or a change of position or action
cause to undergo fermentation
work up into agitation or excitement
be in an agitated or excited state