Meaning of “mouth” in the English Dictionary

"mouth" in British English

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uk /maʊθ/ us /maʊθ/

mouth noun (BODY PART)

A1 [ C ] the opening in the face of a person or animal, consisting of the lips and the space between them, or the space behind containing the teeth and the tongue:

Open your mouth wide and say "Ah".
You shouldn't put so much food in your mouth at once.

More examples

  • He put a grape into his mouth and swallowed it whole.
  • It's not polite to talk with your mouth full.
  • She gave him a great big kiss on the mouth.
  • She punched him in the mouth and two of his teeth came out.
  • She clapped her hand over her mouth to try to stop herself from laughing.

mouth noun (OPENING)

C1 [ C usually singular ] the opening of a narrow container, the opening of a hole or cave, or the place where a river flows into the sea:

Quebec is at the mouth of the St Lawrence River.

mouthverb [ T ]

uk /maʊð/ us /maʊð/

(Definition of “mouth” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"mouth" in American English

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us /mɑʊθ/

mouth noun (BODY PART)

[ C ] the opening in the face used by a person or animal to eat and drink:

I wish you wouldn’t chew with your mouth open.

mouth noun (OPENING)

[ C usually sing ] the opening of a hole or cave:

We looked down into the mouth of the volcano.

[ C usually sing ] The mouth of a river is the place where it flows into the sea.

[ C usually sing ] The opening of a bottle or jar is also called a mouth.

mouthverb [ T ]

us /mɑʊð, mɑʊθ/

mouth verb [ T ] (BODY PART)

to move the lips as if speaking a word:

I mouthed a single word, "Please."

Phrasal verb(s)

(Definition of “mouth” from the Cambridge Academic Content Dictionary © Cambridge University Press)