The noun mouth has 8 senses (first 5 from tagged texts)
1. (49) mouth, oral cavity, oral fissure, rima oris -- (the opening through which food is taken in and vocalizations emerge; "he stuffed his mouth with candy")
2. (12) mouth -- (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")
3. (2) 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")
4. (2) mouth -- (the point where a stream issues into a larger body of water; "New York is at the mouth of the Hudson")
5. (1) mouth -- (a person conceived as a consumer of food; "he has four mouths to feed")
6. mouthpiece, mouth -- (a spokesperson (as a lawyer))
7. sass, sassing, backtalk, back talk, lip, mouth -- (an impudent or insolent rejoinder; "don't give me any of your sass")
8. mouth -- (the opening of a jar or bottle; "the jar had a wide mouth")
Overview of verb mouth
The verb mouth has 3 senses (first 2 from tagged texts)
1. (3) talk, speak, utter, mouth, verbalize, verbalise -- (express in speech; "She talks a lot of nonsense"; "This depressed patient does not verbalize")
2. (1) mouth -- (articulate silently; form words with the lips only; "She mouthed a swear word")