Refers to the line or point where two things are joined, such as in sewing, welding, or connecting parts.
Water is leaking from the joint of this pipe.
The seam of the cloth has come undone.
Water is leaking from the joint in the pipe.
The seam in the wallpaper is showing.
They carefully welded the joint of the steel frame.
The seam of the shirt has started to come undone.