The Collaborative International Dictionary of English v.0.48:

Harrow \Har"row\ (h[a^]r"r[-o]), n. [OE. harowe, harwe, AS.
   hearge; cf. D. hark rake, G. harke, Icel. herfi harrow, Dan.
   harve, Sw. harf. [root]16.]
   1. An implement of agriculture, usually formed of pieces of
      timber or metal crossing each other, and set with iron or
      wooden teeth. It is drawn over plowed land to level it and
      break the clods, to stir the soil and make it fine, or to
      cover seed when sown.
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   2. (Mil.) An obstacle formed by turning an ordinary harrow
      upside down, the frame being buried.
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   Bush harrow, a kind of light harrow made of bushes, for
      harrowing grass lands and covering seeds, or to finish the
      work of a toothed harrow.

   Drill harrow. See under 6th Drill.

   Under the harrow, subjected to actual torture with a
      toothed instrument, or to great affliction or oppression.
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The Collaborative International Dictionary of English v.0.48:

Bush \Bush\ (b[.u]sh), n. [OE. bosch, busch, buysch, bosk, busk;
   akin to D. bosch, OHG. busc, G. busch, Icel. b[=u]skr,
   b[=u]ski, Dan. busk, Sw. buske, and also to LL. boscus,
   buscus, Pr. bosc, It. bosco, Sp. & Pg. bosque, F. bois, OF.
   bos. Whether the LL. or G. form is the original is uncertain;
   if the LL., it is perh. from the same source as E. box a
   case. Cf. Ambush, Boscage, Bouquet, Box a case.]
   1. A thicket, or place abounding in trees or shrubs; a wild
      forest.
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   Note: This was the original sense of the word, as in the
         Dutch bosch, a wood, and was so used by Chaucer. In
         this sense it is extensively used in the British
         colonies, especially at the Cape of Good Hope, and also
         in Australia and Canada; as, to live or settle in the
         bush.
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   2. A shrub; esp., a shrub with branches rising from or near
      the root; a thick shrub or a cluster of shrubs.
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            To bind a bush of thorns among sweet-smelling
            flowers.                              --Gascoigne.
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   3. A shrub cut off, or a shrublike branch of a tree; as,
      bushes to support pea vines.
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   4. A shrub or branch, properly, a branch of ivy (as sacred to
      Bacchus), hung out at vintners' doors, or as a tavern
      sign; hence, a tavern sign, and symbolically, the tavern
      itself.
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            If it be true that good wine needs no bush, 't is
            true that a good play needs no epilogue. --Shak.
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   5. (Hunting) The tail, or brush, of a fox.
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   To beat about the bush, to approach anything in a
      round-about manner, instead of coming directly to it; -- a
      metaphor taken from hunting.

   Bush bean (Bot.), a variety of bean which is low and
      requires no support (Phaseolus vulgaris, variety nanus).
      See Bean, 1.

   Bush buck, or Bush goat (Zool.), a beautiful South
      African antelope (Tragelaphus sylvaticus); -- so called
      because found mainly in wooden localities. The name is
      also applied to other species.

   Bush cat (Zool.), the serval. See Serval.

   Bush chat (Zool.), a bird of the genus Pratincola, of the
      Thrush family.

   Bush dog. (Zool.) See Potto.

   Bush hammer. See Bushhammer in the Vocabulary.

   Bush harrow (Agric.) See under Harrow.

   Bush hog (Zool.), a South African wild hog
      (Potamoch[oe]rus Africanus); -- called also bush pig,
      and water hog.

   Bush master (Zool.), a venomous snake (Lachesis mutus) of
      Guinea; -- called also surucucu.

   Bush pea (Bot.), a variety of pea that needs to be bushed.


   Bush shrike (Zool.), a bird of the genus Thamnophilus,
      and allied genera; -- called also batarg. Many species
      inhabit tropical America.

   Bush tit (Zool.), a small bird of the genus Psaltriparus,
      allied to the titmouse. Psaltriparus minimus inhabits
      California.
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