In database management, a pointer or link between two data structures.

A switch, or relay group system, which finds the telephone line being called as a result of digits being dialed; it also causes interrupted ringing voltage to be placed on the called line or of returning a busy tone to the calling party if the line is busy.

1. A detachable device for connecting electrical conductors.

2. A metal part for joining timbers.

3. A symbol on a flowchart indicating that the flow jumps to a different location on the chart.