open circuit, uncoil

connector, coupler, flume, towrope, circuiting, route, resonant cavity, vortex, windings, switchback, zip, eddy, frustum, tube, cone, microswitch, karabiner, rotor shaft, coiler, trac, bypass, helix, eyebolt, kink, travelator, microchannel, bottleneck, woofer, multiplexer, mux, lane, coil, piston rod, node, curve, coaster brake, pulser, headpin, velcro, potentiometer, spooling, rectifier, servomotor, impedances, toroidal, fader, conveyor, feedback loop, crosshead, oscillator, derailleur, contraflow, wye, trolly, sprocket, quadrature, hairpin bend, mandrel, lambdas, inlet, josephson junction, counterclockwise, hyperfine, sleeving, wormhole, triode, sideband, gripper, toroid, retarder, attenuator, birdcall, semipermeable membrane, combiner, flange, synchroniser, venturi, spaghetti junction, quantize, esses, overhand knot, detents, tailpiece, radiuses, mesh, glottis, subspace, intercommunications, counterflow, valve, demultiplexer, busbar, guideway, auditory canal, catenary, hairpin, cycle, intake valve, deadman, ohm, layer, resonator, loops, fio, diagonal, row, tank, fig, panel, seam, segment, tunnel, block, rectangle, solenoid, strip, bar, chamber, flue, frame, feedback, matching, multivariable, optimised, coupling, adaptive, iterative, nonlinear, correlation, equilibrium, linearized, optimized, parameter, decoupled, simplest, amplifier, bias, combinatorial, parametric, retrieval

belt, crochet, hook, noose, running noose, slip noose

belt, bight, bowline, bowline knot, box end wrench, box wrench, closed-loop system, closed chain, closed loop, crochet stitch, cuff, cuffs, drip loop, drum sander, electric sander, eye, frog, frogs, handcuff, handcuffs, handlock, inguinal hernia, inside clinch, inside loop, intertwine, kinetoscope, kink, lobe, loop gain, loop knot, loop topology, magnetic dipole moment, manacle, noose, outside clinch, outside loop, oxbow, paternoster, pullback, ring, running noose, sander, slip noose, smoother, stitch, strap, tieback, twirl, twist

airplane maneuver, bind, birth control device, camp, circle, circuit, circulate, clique, computer program, computer programme, contraceptive, contraceptive device, coterie, electrical circuit, electric circuit, entwine, fastener, fastening, fingerprint, flight maneuver, holdfast, ingroup, inner circle, knit, pack, preventative, preventive, program, programme, prophylactic device, roll, round shape, tie, wind, wrap

closed circuit, cringle, curl, eyelet, grommet