The Collaborative International Dictionary of English v.0.48:

Scotch \Scotch\, v. t. [Probably the same word as scutch; cf.
   Norw. skoka, skoko, a swingle for flax; perhaps akin to E.
   shake.]
   To cut superficially; to wound; to score.
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         We have scotched the snake, not killed it. --Shak.
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   Scotched collops (Cookery), a dish made of pieces of beef
      or veal cut thin, or minced, beaten flat, and stewed with
      onion and other condiments; -- called also Scotch
      collops. [Written also scotcht collops.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Scotch \Scotch\, a. [Cf. Scottish.]
   Of or pertaining to Scotland, its language, or its
   inhabitants; Scottish.
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   Scotch broom (Bot.), the Cytisus scoparius. See Broom.


   Scotch dipper, or Scotch duck (Zool.), the bufflehead; --
      called also Scotch teal, and Scotchman.

   Scotch fiddle, the itch. [Low] --Sir W. Scott.

   Scotch mist, a coarse, dense mist, like fine rain.

   Scotch nightingale (Zool.), the sedge warbler. [Prov. Eng.]


   Scotch pebble. See under pebble.

   Scotch pine (Bot.) See Riga fir.

   Scotch thistle (Bot.), a species of thistle (Onopordon
      acanthium); -- so called from its being the national
      emblem of the Scotch.
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The Collaborative International Dictionary of English v.0.48:

Scotch \Scotch\, n.
   1. The dialect or dialects of English spoken by the people of
      Scotland.
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   2. Collectively, the people of Scotland.
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The Collaborative International Dictionary of English v.0.48:

Scotch \Scotch\, v. t. [imp. & p. p. Scotched; p. pr. & vb. n.
   Scotching.] [Cf. Prov. E. scote a prop, and Walloon ascot a
   prop, ascoter to prop, F. accoter, also Armor. skoaz the
   shoulder, skoazia to shoulder up, to prop, to support, W.
   ysgwydd a shoulder, ysgwyddo to shoulder. Cf. Scoat.]
   [Written also scoatch, scoat.]
   To shoulder up; to prop or block with a wedge, chock, etc.,
   as a wheel, to prevent its rolling or slipping.
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The Collaborative International Dictionary of English v.0.48:

Scotch \Scotch\, n.
   A slight cut or incision; a score. --Walton.
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The Collaborative International Dictionary of English v.0.48:

Scotch \Scotch\, n.
   A chock, wedge, prop, or other support, to prevent slipping;
   as, a scotch for a wheel or a log on inclined ground.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Scotch
    adj 1: of or relating to or characteristic of Scotland or its
           people or culture or its English dialect or Gaelic
           language; "Scots Gaelic"; "the Scots community in New
           York"; "`Scottish' tends to be the more formal term as in
           `The Scottish Symphony' or `Scottish authors' or
           `Scottish mountains'"; "`Scotch' is in disfavor with
           Scottish people and is used primarily outside Scotland
           except in such frozen phrases as `Scotch broth' or
           `Scotch whiskey' or `Scotch plaid'" [syn: Scots,
           Scottish, Scotch]
    2: avoiding waste; "an economical meal"; "an economical
       shopper"; "a frugal farmer"; "a frugal lunch"; "a sparing
       father and a spending son"; "sparing in their use of heat and
       light"; "stinting in bestowing gifts"; "thrifty because they
       remember the great Depression"; "`scotch' is used only
       informally" [syn: economical, frugal, scotch,
       sparing, stinting]
    n 1: a slight surface cut (especially a notch that is made to
         keep a tally) [syn: score, scotch]
    2: whiskey distilled in Scotland; especially whiskey made from
       malted barley in a pot still [syn: Scotch, Scotch
       whiskey, Scotch whisky, malt whiskey, malt whisky,
       Scotch malt whiskey, Scotch malt whisky]
    v 1: hinder or prevent (the efforts, plans, or desires) of;
         "What ultimately frustrated every challenger was Ruth's
         amazing September surge"; "foil your opponent" [syn:
         thwart, queer, spoil, scotch, foil, cross,
         frustrate, baffle, bilk]
    2: make a small cut or score into