Definition of Mouth

Noun: mouth mawth

The opening through which food is taken in and vocalizations emerge
"he stuffed his mouth with candy";
- oral cavity, oral fissure, rima oris
The externally visible part of the oral cavity on the face and the system of organs surrounding the opening
"she wiped lipstick from her mouth"
An opening that resembles a mouth (as of a cave or a gorge)
"he rode into the mouth of the canyon"; "they built a fire at the mouth of the cave"
The point where a stream issues into a larger body of water
"New York is at the mouth of the Hudson"
A person conceived as a consumer of food
"he has four mouths to feed"
A spokesperson (as a lawyer)
- mouthpiece
An impudent or insolent rejoinder
"don't give me any of your mouth";
- sass [N. Amer], sassing [N. Amer], backtalk [N. Amer], back talk [N. Amer], lip, backchat [Brit]
The opening of a jar or bottle
"the jar had a wide mouth"

Verb: mouth mawth

Express in speech
"She mouths a lot of nonsense";
- talk, speak, utter, verbalize, verbalise [Brit]
Articulate silently; form words with the lips only
"She mouthed a swear word"
Touch with the mouth