1. [n]  changing location by moving back and forth
2. [n]  a square dance figure; a pair of dancers join hands and dance around a point between them
3. [n]  in baseball; a batter's attempt to hit a pitched ball; "he took a vicious cut at the ball"
4. [n]  the act of swinging a golf club at a golf ball and (usually) hitting it
5. [n]  a sweeping blow or stroke; "he took a wild swing at my head"
6. [n]  mechanical device used as a plaything to support someone swinging back and forth
7. [n]  a jaunty rhythm in music
8. [n]  a style of jazz played by big bands popular in the 1930s; flowing rhythms but less complex than later styles of jazz
9. [n]  a state of steady vigorous action that is characteristic of an activity; "the party went with a swing"; "it took time to get into the swing of things"
10. [v]  change drastically"his mood swings"; "the market is swinging up and down"
11. [v]  hit or aim at with a sweeping arm movement; "The soccer player began to swing at the referee"
12. [v]  engage freely in promiscuous sex; often with the husband or wife of one's friends; "There were many swinging couples in the 1960's"
13. [v]  make a big sweeping gesture or movement
14. [v]  play with a subtle and intuitively felt sense of rhythm
15. [v]  move or walk in a swinging or swaying manner; "He swung back"
16. [v]  change direction with a swinging motion; turn; "swing back"; "swing forward"
17. [v]  move in a curve or arc, usually with the intent of hitting; "He swung his left fist"; "swing a bat"
18. [v]  be a social swinger; socialize a lot
19. [v]  influence decisively; "This action swung many votes over to his side"
20. [v]  live in a lively, modern, and relaxed style; "The Woodstock generation attempted to swing freely"
21. [v]  hang freely; "the ornaments dangled from the tree"; "The light dropped from the ceiling"
22. [v]  have a certain musical rhythm; "The music has to swing"

Swing
Swing

more details ...

1. \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.
            I tried if a pendulum would swing faster, or
            continue swinging longer, in case of exsuction of
            the air.                              --Boyle.
   2. To sway or move from one side or direction to another; as,
      the door swung open.
   3. To use a swing; as, a boy swings for exercise or pleasure.
      See {Swing}, n., 3.
   4. (Naut.) To turn round by action of wind or tide when at
      anchor; as, a ship swings with the tide.
   5. To be hanged. [Colloq.] --D. Webster.
   {To swing round the circle}, to make a complete circuit.
      [Colloq.]
            He had swung round the circle of theories and
            systems in which his age abounded, without finding
            relief.                               --A. V. G.
                                                  Allen.
   

2. \Swing\, v. t.
   1. To cause to swing or vibrate; to cause to move backward
      and forward, or from one side to the other.
            He swings his tail, and swiftly turns his round.
                                                  --Dryden.
            They get on ropes, as you must have seen the
            children, and are swung by their men visitants.
                                                  --Spectator.
   2. To give a circular movement to; to whirl; to brandish; as,
      to swing a sword; to swing a club; hence, colloquially, to
      manage; as, to swing a business.
   3. (Mach.) To admit or turn (anything) for the purpose of
      shaping it; -- said of a lathe; as, the lathe can swing a
      pulley of 12 inches diameter.
   {To swing a door}, {gate}, etc. (Carp.), to put it on hinges
      so that it can swing or turn.
   

3. \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.
   2. Swaying motion from one side or direction to the other;
      as, some men walk with a swing.
   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.
   4. Influence of power of a body put in swaying motion.
            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.
   5. Capacity of a turning lathe, as determined by the diameter
      of the largest object that can be turned in it.
   6. Free course; unrestrained liberty or license; tendency.
      ``Take thy swing.'' --Dryden.
            To prevent anything which may prove an obstacle to
            the full swing of his genius.         --Burke.
   {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.