Definition of “jaw” - English Dictionary

“jaw” in British English

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jawnoun

uk /dʒɔː/ us /dʒɑː/

jaw noun (BODY PART)

B2 [ C ] the lower part of your face that moves when you open your mouth:

a broken jaw
US a punch in the jaw
UK a punch on the jaw
He has a strong/square jaw.

[ C ] either of the two bones in your mouth that hold your teeth:

jaws [ plural ]

the mouth of a person or animal, especially a large and frightening animal:

The lion opened its jaws and roared.

something that opens and closes like the upper and lower parts of a mouth:

His foot was caught in the jaws of the trap.

More examples

jaw noun (TALK)

[ S ] informal a talk:

I met Jane and we had a good jaw over lunch.

jawverb [ I ]

uk /dʒɔː/ us /dʒɑː/ informal

to talk for a long time:

He was jawing away to his girlfriend for hours on the phone.

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

“jaw” in American English

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jawnoun [ C ]

us /dʒɔ/

either of the two bony parts bordering the mouth that hold your teeth in place:

the upper/lower jaw

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