involution vs change of shape

involution and change of shape both are nouns.

Word	Noun	Adjective	Verb	Adverb
involution	Yes	No	No	No
change of shape	Yes	No	No	No

As nouns, change of shape is a hypernym of involution; that is, change of shape is a word with a broader meaning than involution:

involution (noun)	change of shape (noun)
the action of enfolding something	an action that changes the shape of something
the process of raising a quantity to some assigned power
the act of sharing in the activities of a group
marked by elaborately complex detail
a long and intricate and complicated grammatical construction
reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)