lip

lip /ˈlɪp/ noun
plural lips
lip
/ˈlɪp/
noun
plural lips
Britannica Dictionary definition of LIP
1 
[count] : either one of the two soft parts that surround the mouth
— see picture at mouth; see also stiff upper lip at 1stiff
2 
[count] : the edge of a cut or hole
3 
[count] : the edge of a container especially where it is slightly spread out
4 
[noncount] informal : rude speech in reply to someone who should be spoken to with respect

button your lip/lips

— see 2button

fat lip

— see 1fat

lick your lips

— see 1lick

my lips are sealed

informal
— used to say that you will not tell secret information to anyone

on everyone's/everybody's lips

informal
: being said or discussed by many people

on the lips of

informal
: being said or discussed by (people)

pass your lips

— see 1pass

read lips

— see 1read

smack your lips

— see 1smack

zip your lip

— see 1zip