convolution vs change of shape

convolution and change of shape both are nouns.

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

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

convolution (noun)	change of shape (noun)
the action of coiling or twisting or winding together	an action that changes the shape of something
a convex fold or elevation in the surface of the brain
the shape of something rotating rapidly