pucker vs ruckle

pucker is a noun but ruckle is not a noun.

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

As verbs, ruckle is a hypernym of pucker; that is, ruckle is a word with a broader meaning than pucker:

pucker: to gather something into small wrinkles or folds
ruckle: make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic

Other hypernyms of pucker include crease, crinkle, crisp, scrunch, scrunch up, wrinkle.

As verbs, ruckle is a hypernym of pucker; that is, ruckle is a word with a broader meaning than pucker:

pucker: become wrinkled or drawn together
ruckle: make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic

Other hypernyms of pucker include crease, crinkle, crisp, scrunch, scrunch up, wrinkle.

pucker (noun)	ruckle (noun)
an irregular fold in an otherwise even surface (as in cloth)

pucker (verb)	ruckle (verb)
to gather something into small wrinkles or folds	make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic
draw together into folds or puckers	make a hoarse, rattling sound
become wrinkled or drawn together