n. 25B6; noun
the lip of the crater : EDGE, rim, brim, border, verge, brink.
(informal) I'll have no more of your lip! : INSOLENCE, impertinence, impudence, cheek, rudeness, audacity, effrontery, disrespect, presumptuousness; informal mouth; Brit. informal sauce, backchat.
labial, labio-.
25A0; keep a stiff upper lip KEEP CONTROL OF ONESELF, not show emotion, appear unaffected; informal keep one's cool.