The opening in the lower part of the human face, surrounded by the lips, through which food is taken in and from which speech and other sounds are emitted.

“Keep your mouth closed while you are chewing.”

The place where a river enters the sea, a lake, or another river.

“The city is located at the mouth of the Hudson River.”

To move the lips as if saying something, but without making any sound.

“She mouthed 'good luck' to him as he went on stage.”