joint
US /dʒɔɪnt/
UK /dʒɔɪnt/

1.
a structure in the human or animal body at which two parts of the skeleton are fitted together
:
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My knee joint aches after running.
•
The doctor examined the patient's shoulder joint.
2.
a place where two or more things are joined
:
•
The pipe burst at the weakest joint.
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Make sure all the joints are sealed properly.
3.
a place, typically a bar or restaurant, where people meet for social activities, often informal or slightly disreputable
:
•
Let's meet at that little joint downtown.
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It's a greasy spoon joint, but the food is good.
1.
shared, held, or done by two or more people or groups
:
•
They made a joint decision to buy the house.
•
The project was a joint effort between the two companies.