"cockle" in the noun sense
1. cockle
common edible European bivalve
2. cockle
common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs
"cockle" in the verb sense
1. ripple, ruffle, riffle, cockle, undulate
stir up (water) so as to form ripples
2. pucker, rumple, cockle, crumple, knit
to gather something into small wrinkles or folds
"She puckered her lips"
Source: WordNet® (An amazing lexical database of English)
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