S-curve, arch, bend, bend back, bending, bow, bowing, cable, conflexure, contract, cord, crook, curl, curve, decurve, deflect, deflection, dome, embow, exercise, extension, flection, flexure, geanticline, geosyncline, give, hairpin turn, hook, hump, hunch, incurvate, incurve, inflect, inflection, lead, loop, meander, oxbow, recurve, reflect, reflection, reflex, retroflex, round, sag, stretch, swag, sweep, tense, tighten, turn, turning, vault, wind, wire