fold vs plication

fold and plication both are nouns.

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

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

Other hyponyms of fold include pleating.

As nouns, fold and plication are synonyms defined as:

Other synonyms of fold include bend, crease, crimp, flexure.

fold (noun)	plication (noun)
the act of folding	the act of folding in parallel folds
a pen for sheep	an angular or rounded shape made by folding
a folded part (as in skin or muscle)
a group of people who adhere to a common faith and habitually attend a given church
a group of sheep or goats
a geological process that causes a bend in a stratum of rock
an angular or rounded shape made by folding

fold (verb)	plication (verb)
incorporate a food ingredient into a mixture by repeatedly turning it over without stirring or beating
become folded or folded up
bend or lay so that one part covers the other
confine in a fold, like sheep
cease to operate or cause to cease operating