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English definition of “joint”

joint

adjective [not gradable]  /dʒɔɪnt/ us  

joint adjective [not gradable] (SHARED)

belonging to or shared between two or more people: Do you and your husband have a joint bank account or separate accounts? In court, the parents were awarded joint custody of their son (= the right to care for him was shared between them). joint venture A joint venture is a business that gets its money from two or more partners.
jointly
adverb [not gradable]  /ˈdʒɔɪnt·li/ us  
Construction of the new high school will be jointly funded by the city and the state.

joint

noun [C]  /dʒɔɪnt/ us  

joint noun [C] (BODY PART)

a place in the body where two bones meet: Good running shoes are supposed to reduce the stress on the ankle, knee, and hip joints.

joint noun [C] (CONNECTION)

a place where two things are joined together: Metal joints in the bridge allow it to expand or contract with changes in air temperature.

joint noun [C] (PLACE)

slang a cheap restaurant: a hamburger joint slang A joint is also a place where people go for some type of entertainment: a jazz joint
(Definition of joint from the Cambridge Academic Content Dictionary © Cambridge University Press)
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