the opening and cavity in the lower part of the human face, surrounded by the lips, through which food is taken in and vocal sounds are emitted

Ben stood transfixed with disbelief, his mouth open

he leaned over and kissed her on the mouth

she could have bitten her tongue the moment the words left her mouth

an opening or entrance to a hollow, concave, or enclosed structure

the mouth of a cave

move the lips as if saying (something)

she mouthed a silent farewell

‘Come on,’ he mouthed

take in or touch with the mouth

puppies may mouth each other's collars during play