The Collaborative International Dictionary of English v.0.48:

Swing \Swing\, v. i. [imp. & p. p. Swung; Archaic imp.
   Swang; p. pr. & vb. n. Swinging.] [OE. swingen, AS.
   swingan to scourge, to fly, to flutter; akin to G. schwingen
   to winnow, to swingle, oscillate, sich schwingen to leap, to
   soar, OHG. swingan to throw, to scourge, to soar, Sw. svinga
   to swing, to whirl, Dan. svinge. Cf. Swagger, Sway,
   Swinge, Swink.]
   1. To move to and fro, as a body suspended in the air; to
      wave; to vibrate; to oscillate.
      [1913 Webster]

            I tried if a pendulum would swing faster, or
            continue swinging longer, in case of exsuction of
            the air.                              --Boyle.
      [1913 Webster]

   2. To sway or move from one side or direction to another; as,
      the door swung open.
      [1913 Webster]

   3. To use a swing; as, a boy swings for exercise or pleasure.
      See Swing, n., 3.
      [1913 Webster]

   4. (Naut.) To turn round by action of wind or tide when at
      anchor; as, a ship swings with the tide.
      [1913 Webster]

   5. To be hanged. [Colloq.] --D. Webster.
      [1913 Webster]

   To swing round the circle, to make a complete circuit.
      [Colloq.]
      [1913 Webster]

            He had swung round the circle of theories and
            systems in which his age abounded, without finding
            relief.                               --A. V. G.
                                                  Allen.
      [1913 Webster]

WordNet (r) 3.0 (2006):

swinging
    adj 1: characterized by a buoyant rhythm; "an easy lilting
           stride"; "the flute broke into a light lilting air"; "a
           swinging pace"; "a graceful swingy walk"; "a tripping
           singing measure" [syn: lilting, swinging, swingy,
           tripping]
    n 1: changing location by moving back and forth [syn: swing,
         swinging, vacillation]

Moby Thesaurus II by Grady Ward, 1.0:

139 Moby Thesaurus words for "swinging":
   aberrancy, aberration, angular momentum, angular motion,
   angular velocity, axial motion, bend, bias, bowling, branching off,
   careen, careening, cascading, centrifugation, chambering, chic,
   circuitousness, circulation, circumgyration, circumrotation,
   corner, crook, curve, dangling, declination, departure, dependent,
   depending, detour, deviance, deviancy, deviation, deviousness,
   digression, discursion, divagation, divarication, divergence,
   diversion, dogleg, double, drift, drifting, easy virtue, errantry,
   excursion, excursus, exorbitation, falling, falling loosely,
   fashionable, flowing, full circle, groovy, gyration, hairpin,
   hanging, hip, hung, indirection, laxity, lightness, loose morals,
   looseness, lurch, lurching, modern, obliquity, pendent, pending,
   pendulant, pendular, penduline, pendulous, pensile, pererration,
   pitching, pivoting, promiscuity, rambling, reel, reeling,
   revolution, rock, rocking, roll, rolling, rotation,
   rotational motion, sheer, shift, shifting, shifting course,
   shifting path, skew, slant, sleeping around, spin, spinning,
   straying, suspended, swag, sway, swaying, sweep, swerve, swerving,
   swing, swirling, swiveling, tack, tossing, trendy, trolling,
   trundling, turbination, turn, turning, twist, variation, veer,
   volutation, volution, wag, waggle, wandering, wantonness, warp,
   wave, waver, waywardness, weeping, wheeling, whir, whirling,
   whorishness, with it, yaw, zigzag