loop (Noun) — Fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines.
loop (Noun) — Anything with a round or oval shape (formed by a curve that is closed and does not intersect itself).
loop (Noun) — (computing) a single execution of a set of instructions that are to be repeated. ex. "the solution took hundreds of loops"
loop (Noun) — An inner circle of advisors (especially under President Reagan). ex. "he's no longer in the loop"
loop (Noun) — The basic pattern of the human fingerprint.
loop (Noun) — A computer program that performs a series of instructions repeatedly until some specified condition is satisfied.
loop (Noun) — The topology of a network whose components are serially connected in such a way that the last component is connected to the first component.
loop (Noun) — An intrauterine device in the shape of a loop.
loop (Noun) — A complete electrical circuit around which current flows or a signal circulates.
loop (Noun) — A flight manoeuvre; aircraft flies a complete circle in the vertical plane.
loop (Verb) — Move in loops. ex. "The bicycle looped around the tree"
loop (Verb) — Make a loop in. ex. "loop a rope"
loop (Verb) — Fly loops, perform a loop. ex. "the stunt pilot looped his plane"
loop (Verb) — Wind around something in coils or loops.
loop (Verb) — Fasten or join with a loop. ex. "He looped the watch through his belt"