noun

1. a place or part where two things or parts are joined
2. the way in which two things are joined at such a part
3. one of the parts or sections of a jointed whole
4. a large cut of meat with the bone still in it, as for a roast
5. ☆ Slang
   1. a cheap bar, nightclub, etc.
   2. any house, building, etc.
   3. a prison
6. ☆ Slang a marijuana cigarette
7. Anat.
   1. a place or part where two bones or corresponding structures are joined, usually so that they can move
   2. the way in which they are joined
8. Bot. a point where a branch or leaf grows out of the stem
9. Geol. a fracture in a rock mass, along which displacement has not occurred

Etymology: OFr < L junctus, pp. of jungere, to join, yoke

adjective

1. joined as to time; concurrent
2. common to two or more persons, governments, etc. as to ownership or action a joint declaration, joint property
3. sharing with someone else a joint owner

Etymology: OFr joint, jointe, pp. of joindre: see join

transitive verb

1. to connect by a joint or joints
2. to give a joint or joints to
3. to prepare (a board or stave) for joining to another
4. to cut (meat) into joints; separate at the joints