pucker vs ruck

pucker and ruck both are nouns.

Word	Noun	Adjective	Verb	Adverb
pucker	Yes	No	Yes	No
ruck	Yes	No	Yes	No

As nouns, pucker and ruck are synonyms defined as:

pucker and ruck: an irregular fold in an otherwise even surface (as in cloth)

As verbs, pucker and ruck are synonyms defined as:

Other synonyms of pucker include ruck up.

pucker (noun)	ruck (noun)
an irregular fold in an otherwise even surface (as in cloth)	a crowd especially of ordinary or undistinguished persons or things
	an irregular fold in an otherwise even surface (as in cloth)

pucker (verb)	ruck (verb)
to gather something into small wrinkles or folds	become wrinkled or drawn together
draw together into folds or puckers
become wrinkled or drawn together