Definitions of loop:

• noun:   a flight maneuver; aircraft flies a complete circle in the vertical plane
• noun:   an intrauterine device in the shape of a loop
• noun:   a computer program that performs a series of instructions repeatedly until some specified condition is satisfied
• noun:   the basic pattern of the human fingerprint
• noun:   an inner circle of advisors (especially under President Reagan)

  Example: "He's no longer in the loop"

• noun:   anything with a round or oval shape (formed by a curve that is closed and does not intersect itself)
• noun:   a complete electrical circuit around which current flows or a signal circulates
• noun:   the topology of a network whose components are connected in a loop
• noun:   (computer science) a single execution of a set of instructions that are to be repeated
• noun:   fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines
• verb:   fly loops, perform a loop

  Example: "The stunt pilot looped his plane"

• verb:   move in loops

  Example: "The bicycle looped around the tree"

• verb:   fasten or join with a loop

  Example: "He looped the watch through his belt"

• verb:   make a loop in

  Example: "Loop a rope"

• verb:   wind around something in coils or loops
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #11675)