The Collaborative International Dictionary of English v.0.48:

Gin \Gin\ (j[i^]n), n. [Contr. from Geneva. See 2d Geneva.]
   A strong alcoholic liquor, distilled from rye and barley, and
   flavored with juniper berries; -- also called Hollands and
   Holland gin, because originally, and still very
   extensively, manufactured in Holland. Common gin is usually
   flavored with turpentine.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gin \Gin\, n. [A contraction of engine.]
   [1913 Webster]
   1. Contrivance; artifice; a trap; a snare. --Chaucer.
      Spenser.
      [1913 Webster]

   2.
      (a) A machine for raising or moving heavy weights,
          consisting of a tripod formed of poles united at the
          top, with a windlass, pulleys, ropes, etc.
      (b) (Mining) A hoisting drum, usually vertical; a whim.
          [1913 Webster]

   3. A machine for separating the seeds from cotton; a cotton
      gin.
      [1913 Webster]

   Note: The name is also given to an instrument of torture
         worked with screws, and to a pump moved by rotary
         sails.
         [1913 Webster]

   Gin block, a simple form of tackle block, having one wheel,
      over which a rope runs; -- called also whip gin,
      rubbish pulley, and monkey wheel.

   Gin power, a form of horse power for driving a cotton gin.


   Gin race, or Gin ring, the path of the horse when putting
      a gin in motion. --Halliwell.

   Gin saw, a saw used in a cotton gin for drawing the fibers
      through the grid, leaving the seed in the hopper.

   Gin wheel.
      (a) In a cotton gin, a wheel for drawing the fiber through
          the grid; a brush wheel to clean away the lint.
      (b) (Mining) the drum of a whim.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gin \Gin\, prep. [AS. ge['a]n. See Again.]
   Against; near by; towards; as, gin night. [Scot.] --A. Ross
   (1778).
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gin \Gin\, conj. [See Gin, prep.]
   If. [Scotch] --Jamieson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gin \Gin\ (g[i^]n), v. i. [imp. & p. p. Gan (g[a^]n), Gon
   (g[o^]n), or Gun (g[u^]n); p. pr. & vb. n. Ginning.] [OE.
   ginnen, AS. ginnan (in comp.), prob. orig., to open, cut
   open, cf. OHG. inginnan to begin, open, cut open, and prob.
   akin to AS. g[imac]nan to yawn, and E. yawn. [root]31. See
   Yawn, v. i., and cf. Begin.]
   To begin; -- often followed by an infinitive without to; as,
   gan tell. See Gan. [Obs. or Archaic] "He gan to pray."
   --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gin \Gin\, v. t. [imp. & p. p. Ginned; p. pr. & vb. n.
   Ginning.]
   1. To catch in a trap. [Obs.] --Beau. & Fl.
      [1913 Webster]

   2. To clear of seeds by a machine; as, to gin cotton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

gin
    n 1: strong liquor flavored with juniper berries
    2: a trap for birds or small mammals; often has a slip noose
       [syn: snare, gin, noose]
    3: a machine that separates the seeds from raw cotton fibers
       [syn: cotton gin, gin]
    4: a form of rummy in which a player can go out if the cards
       remaining in their hand total less than 10 points [syn:
       gin, gin rummy, knock rummy]
    v 1: separate the seeds from (cotton) with a cotton gin
    2: trap with a snare; "gin game"

The Free On-line Dictionary of Computing (19 January 2023):

GIN

   A special-purpose macro assembler used to build the GEORGE
   3 operating system for ICL1900 series computers.

   (1994-11-02)