The Collaborative International Dictionary of English v.0.48:

Swing \Swing\, n.
   1. The act of swinging; a waving, oscillating, or vibratory
      motion of a hanging or pivoted object; oscillation; as,
      the swing of a pendulum.
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   2. Swaying motion from one side or direction to the other;
      as, some men walk with a swing.
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   3. A line, cord, or other thing suspended and hanging loose,
      upon which anything may swing; especially, an apparatus
      for recreation by swinging, commonly consisting of a rope,
      the two ends of which are attached overhead, as to the
      bough of a tree, a seat being placed in the loop at the
      bottom; also, any contrivance by which a similar motion is
      produced for amusement or exercise.
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   4. Influence of power of a body put in swaying motion.
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            The ram that batters down the wall,
            For the great swing and rudeness of his poise,
            They place before his hand that made the engine.
                                                  --Shak.
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   5. Capacity of a turning lathe, as determined by the diameter
      of the largest object that can be turned in it.
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   6. Free course; unrestrained liberty or license; tendency.
      "Take thy swing." --Dryden.
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            To prevent anything which may prove an obstacle to
            the full swing of his genius.         --Burke.
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   Full swing. See under Full.

   Swing beam (Railway Mach.), a crosspiece sustaining the car
      body, and so suspended from the framing of a truck that it
      may have an independent lateral motion.

   Swing bridge, a form of drawbridge which swings
      horizontally, as on a vertical pivot.

   Swing plow, or Swing plough.
      (a) A plow without a fore wheel under the beam.
      (b) A reversible or sidehill plow.

   Swing wheel.
      (a) The scape-wheel in a clock, which drives the pendulum.
      (b) The balance of a watch.
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