lip

noun

1.
either of two fleshy folds of tissue that surround the mouth and play a role in speaking
lip-thrum weller
2.
(botany) either of the two parts of a bilabiate corolla or calyx
3.
an impudent or insolent rejoinder
back talk backtalk mouth sass sassing
4.
the top edge of a vessel or other container
brim rim
5.
either the outer margin or the inner margin of the aperture of a gastropod's shell