noun

• (anatomy) Any part of an animalian body where two bones or exoskeleton segments are abutted, in most cases allowing that part of the body to be bent or straightened.
• (geology) A fracture in which the strata are not offset; a geologic joint.
• (chiefly US slang, may be somewhat derogatory) A place of business, particularly in the food service or hospitality industries; sometimes extended to any place that is a focus of human connection or activity (e.g., schools, hangouts, party spots).
  "It was the kind of joint you wouldn't want your boss to see you in."
• (chiefly US slang, may be somewhat derogatory) A place of business, particularly in the food service or hospitality industries; sometimes extended to any place that is a focus of human connection or activity (e.g., schools, hangouts, party spots).

verb

• (transitive) To unite by a joint or joints; to fit together; to prepare so as to fit together
  "to joint boards"
• (transitive) To join; to connect; to unite; to combine.
  "But soon that war had end, and the time's state Made friends of them, jointing their force 'gainst Caesar"
• (transitive) To provide with a joint or joints; to articulate.
  "The fingers are […]jointed together for motion."
• (transitive) To separate the joints; of; to divide at the joint or joints; to disjoint; to cut up into joints, as meat.
  "Another time alſo being minded to entertain king Priamus friendly, when he came unto his pavilion: / He then beſtir'd himſelfe, and caught up ſoone, / A good white ſheepe, whoſe throat he cut anon. / but about cutting it up, quartering, jointing, ſeething, and roſting, he ſpent a great part of the night: […]"