cockle vs ripple

cockle and ripple both are nouns.

Word	Noun	Adjective	Verb	Adverb
cockle	Yes	No	Yes	No
ripple	Yes	No	Yes	No

As verbs, cockle and ripple are synonyms defined as:

Other synonyms of cockle include riffle, ruffle, undulate.

cockle (noun)	ripple (noun)
common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs	a small wave on the surface of a liquid
common edible European bivalve	(electronics) an oscillation of small amplitude imposed on top of a steady value

cockle (verb)	ripple (verb)
to gather something into small wrinkles or folds	stir up (water) so as to form ripples
stir up (water) so as to form ripples	flow in an irregular current with a bubbling noise