The Collaborative International Dictionary of English v.0.48:

Beat \Beat\, v. i.
   1. To strike repeatedly; to inflict repeated blows; to knock
      vigorously or loudly.
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            The men of the city . . . beat at the door.
                                                  --Judges. xix.
                                                  22.
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   2. To move with pulsation or throbbing.
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            A thousand hearts beat happily.       --Byron.
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   3. To come or act with violence; to dash or fall with force;
      to strike anything, as rain, wind, and waves do.
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            Sees rolling tempests vainly beat below. --Dryden.
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            They [winds] beat at the crazy casement.
                                                  --Longfellow.
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            The sun beat upon the head of Jonah, that he
            fainted, and wished in himself to die. --Jonah iv.
                                                  8.
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            Public envy seemeth to beat chiefly upon ministers.
                                                  --Bacon.
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   4. To be in agitation or doubt. [Poetic]
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            To still my beating mind.             --Shak.
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   5. (Naut.) To make progress against the wind, by sailing in a
      zigzag line or traverse.
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   6. To make a sound when struck; as, the drums beat.
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   7. (Mil.) To make a succession of strokes on a drum; as, the
      drummers beat to call soldiers to their quarters.
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   8. (Acoustics & Mus.) To sound with more or less rapid
      alternations of greater and less intensity, so as to
      produce a pulsating effect; -- said of instruments, tones,
      or vibrations, not perfectly in unison.
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   A beating wind (Naut.), a wind which necessitates tacking
      in order to make progress.

   To beat about, to try to find; to search by various means
      or ways. --Addison.

   To beat about the bush, to approach a subject circuitously.


   To beat up and down (Hunting), to run first one way and
      then another; -- said of a stag.

   To beat up for recruits, to go diligently about in order to
      get helpers or participators in an enterprise.

   To beat the rap, to be acquitted of an accusation; --
      especially, by some sly or deceptive means, rather than to
      be proven innocent.
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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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