angular shape vs crease

angular shape and crease both are nouns.

Word	Noun	Adjective	Verb	Adverb
angular shape	Yes	No	No	No
crease	Yes	No	Yes	No

As nouns, crease is a hyponym of angular shape; that is, crease is a word with a more specific, narrower meaning than angular shape:

Other hyponyms of angular shape include forking, furcation, jog, zag, zig, zigzag, bend, crimp, flexure, fold, plication.

angular shape (noun)	crease (noun)
a shape having one or more sharp angles	a Malayan dagger with a wavy blade
	a slight depression or fold in the smoothness of a surface
	an angular or rounded shape made by folding

angular shape (verb)	crease (verb)
	become wrinkled or crumpled or creased
	make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic
	make wrinkled or creased
	scrape gently