mouth
classifier for things with mouths (people, domestic animals, cannons, wells etc)
classifier for bites or mouthfuls
open end
entrance
gate
opening
person
edge or blade of a knife
a crack
KangXi radical 30
to speak
to say
to explain
to scold
to tell off
a theory (usually in compounds such as 日心说 heliocentric theory)
to criticize
to try to influence someone to do something
to mean