lip

(anatomy) labia (of the vulva)

upper lip; (entomology) labrum

lower lip

to augment lip volume (through cosmetic surgery or injections); plump lips

hare lip (birth defect)

epipharynx (entomology); inner part of the lip

to moisten one's lips; to sip (wine, tea etc); esp. used with negatives: never touch a drop of the stuff

white teeth and vermilion lips (idiom); lovely young woman

blabbing and showing off (idiom); loud-mouthed trouble maker