chill vs change state

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

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

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

Other hypernyms of chill include turn.

chill (noun)	change state (noun)
coldness due to a cold environment
a sudden numbing dread
an almost pleasurable sensation of fright
a sensation of cold that often marks the start of an infection and the development of a fever

chill (verb)	change state (verb)
loose heat	undergo a transformation or a change of position or action
make cool or cooler
depress or discourage