#joint  junction by which parts or objects are joined together
  supertype:  junction.connector__conjunction  something that joins or connects
  subtype:  ball-and-socket_joint  a joint that can rotate within a socket
  subtype:  butt_joint__butt  a joint made by fastening ends together without overlapping
     subtype:  butt_weld  a butt joint that is welded
     subtype:  fish_joint  a butt joint formed by bolting fish plates to the sides of two rails or beams
  subtype:  flexible_joint__hinge  a joint that holds two parts together so that one can swing relative to the other
     subtype:  butt_hinge  a hinge mortised flush into the edge of the door and jamb
     subtype:  strap_hinge__straphinge__joint_hinge__jointhinge  a hinge with two long straps; one strap is fastened to the surface of a moving part (e.g., a door or lid) and the other is fastened to the adjacent stationary frame
     subtype:  tee_hinge__teehinge__T_hinge  a hinge that looks like the letter T when it is opened; similar to a strap hinge except that one strap has been replaced by half of a butt hinge that can be mortised flush into the stationary frame
  subtype:  knuckle_joint__knucklejoint__hinge_joint  a joint allowing movement in one plane only
  subtype:  lap_joint__lapjoint__splice  joint made by overlapping two ends and joining them together
  subtype:  miter_joint__miterjoint__mitre_joint__mitrejoint  joint that forms a corner; usually both sides are bevelled at a 45-degree angle to form a 90-degree corner
  subtype:  mortise_joint__mortisejoint__mortise-and-tenon_joint__mortiseandtenonjoint  a joint made by inserting tenon on one piece into mortise holes in the other
     subtype:  dovetail_joint__dovetail  a mortise joint formed by interlocking tenons and mortises
     subtype:  tongue_and_groove_joint  a mortise joint made by fitting a projection on the edge of one board into a matching groove on another board
  subtype:  rabbet_joint  a joint formed by fitting together two rabbeted boards
  subtype:  seam  joint consisting of a line formed by joining two pieces
     subtype:  felled_seam__fell  seam made by turning under or folding together and stitching the seamed materials to avoid rough edges
     subtype:  surgical_seam__suture  a seam used in surgery
     subtype:  welt  a raised or strengthened seam
  subtype:  toggle_joint  a joint made by two arms attached by a pivot; used to apply pressure at the two ends by straightening the joint
  subtype:  weld  a metal joint formed by softening with heat and fusing or hammering together

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