wrinkle vs fold up

wrinkle is a noun but fold up is not a noun.

Word	Noun	Adjective	Verb	Adverb
wrinkle	Yes	No	Yes	No
fold up	No	No	Yes	No

As verbs, fold up is a hypernym of wrinkle; that is, fold up is a word with a broader meaning than wrinkle:

Other hypernyms of wrinkle include fold.

As verbs, fold up is a hypernym of wrinkle; that is, fold up is a word with a broader meaning than wrinkle:

wrinkle: make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic
fold up: bend or lay so that one part covers the other

Other hypernyms of wrinkle include fold, turn up.

As verbs, fold up is a hypernym of wrinkle; that is, fold up is a word with a broader meaning than wrinkle:

Other hypernyms of wrinkle include fold, turn up.

wrinkle (noun)	fold up (noun)
a clever method of doing something (especially something new and different)
a minor difficulty
a slight depression or fold in the smoothness of a surface

wrinkle (verb)	fold up (verb)
become wrinkled or crumpled or creased	become folded or folded up
make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic	bend or lay so that one part covers the other
gather or contract into wrinkles or folds; pucker
make wrinkled or creased