angularity vs plication

angularity and plication both are nouns.

Word	Noun	Adjective	Verb	Adverb
angularity	Yes	No	No	No
plication	Yes	No	No	No

As nouns, plication is a hyponym of angularity; that is, plication is a word with a more specific, narrower meaning than angularity:

Other hyponyms of angularity include forking, furcation, jog, zag, zig, zigzag, bend, crease, crimp, flexure, fold.

angularity (noun)	plication (noun)
the property possessed by a shape that has angles	the act of folding in parallel folds
a shape having one or more sharp angles	an angular or rounded shape made by folding