symmetrize vs modify

symmetrize and modify both are verbs.

Word	Noun	Adjective	Verb	Adverb
symmetrize	No	No	Yes	No
modify	No	No	Yes	No

As verbs, modify is a hypernym of symmetrize; that is, modify is a word with a broader meaning than symmetrize:

Other hypernyms of symmetrize include alter, change.

symmetrize (verb)	modify (verb)
make symmetric	make less severe or harsh or extreme
	add a modifier to a constituent
	cause to change; make different; cause a transformation