Source : Webster's Revised Unabridged Dictionary (1913)

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.

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.

         We have scotched the snake, not killed it. --Shak.

   {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}.]

Scotch \Scotch\, a. [Cf. {Scottish}.]
   Of or pertaining to Scotland, its language, or its
   inhabitants; Scottish.

   {Scotch broom} (Bot.), the {Cytisus scoparius}. See {Broom}.
      

   {Scotch dipper}, or {Scotch duck} (Zo["o]l.), 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} (Zo["o]l.), 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.

Scotch \Scotch\, n.
   1. The dialect or dialects of English spoken by the people of
      Scotland.

   2. Collectively, the people of Scotland.

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.

Scotch \Scotch\, n.
   A slight cut or incision; a score. --Walton.

Source : WordNet®

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}]
     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}, {sparing},
         {stinting}]