Noun
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either the outer margin or the inner margin of the aperture of a gastropod's shell
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the top edge of a vessel or other container
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an impudent or insolent rejoinder
"don't give me any of your sass"
- back talk -
(botany) either of the two parts of a bilabiate corolla or calyx
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either of two fleshy folds of tissue that surround the mouth and play a role in speaking