The Collaborative International Dictionary of English v.0.48:

Beast \Beast\ (b[=e]st), n. [OE. best, beste, OF. beste, F.
   b[^e]te, fr. L. bestia.]
   1. Any living creature; an animal; -- including man, insects,
      etc. [Obs.] --Chaucer.
      [1913 Webster]

   2. Any four-footed animal, that may be used for labor, food,
      or sport; as, a beast of burden.
      [1913 Webster]

            A righteous man regardeth the life of his beast.
                                                  --Prov. xii.
                                                  10.
      [1913 Webster]

   3. any animal other than a human; -- opposed to man.
      [1913 Webster]

            'Tain't a fit night out for man nor beast.
                                                  --W. C.
                                                  Fields.
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   4. Fig.: A coarse, brutal, filthy, or degraded fellow.
      [1913 Webster]

   5. A game at cards similar to loo. [Obs.] --Wright.
      [1913 Webster]

   6. A penalty at beast, omber, etc. Hence: To be beasted, to
      be beaten at beast, omber, etc.
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   Beast royal, the lion. [Obs.] --Chaucer.
      [1913 Webster]

   Syn: Beast, Brute.

   Usage: When we use these words in a figurative sense, as
          applicable to human beings, we think of beasts as mere
          animals governed by animal appetite; and of brutes as
          being destitute of reason or moral feeling, and
          governed by unrestrained passion. Hence we speak of
          beastly appetites; beastly indulgences, etc.; and of
          brutal manners; brutal inhumanity; brutal ferocity.
          So, also, we say of a drunkard, that he first made
          himself a beast, and then treated his family like a
          brute.
          [1913 Webster]

WordNet (r) 3.0 (2006):

beast
    n 1: a living organism characterized by voluntary movement [syn:
         animal, animate being, beast, brute, creature,
         fauna]
    2: a cruelly rapacious person [syn: beast, wolf, savage,
       brute, wildcat]

Moby Thesaurus II by Grady Ward, 1.0:

90 Moby Thesaurus words for "beast":
   Mafioso, Young Turk, animal, anthropophagite, barbarian, being,
   beldam, berserk, berserker, bomber, brute, cannibal, creature,
   creeping thing, critter, cur, demon, destroyer, devil, dog, dragon,
   dumb animal, dumb friend, fiend, fire-eater, firebrand, fury, goon,
   gorilla, gunsel, hardnose, hell-raiser, hellcat, hellhound,
   hellion, holy terror, hood, hoodlum, hothead, hotspur, hound,
   hyena, incendiary, insect, killer, living being, living thing,
   mad dog, madcap, man-eater, mongrel, monster, mugger, nihilist,
   pig, polecat, quadruped, rapist, reptile, revolutionary, savage,
   serpent, shark, she-wolf, skunk, snake, spitfire, swine, termagant,
   terror, terrorist, tiger, tigress, tough, tough guy, ugly customer,
   vandal, varmint, vermin, violent, viper, virago, vixen, whelp,
   wild beast, wild man, witch, wolf, worm, wrecker



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

BEAST
       Browser Exploit Against SSL/TLS (SSL, TLS)


Easton's 1897 Bible Dictionary:

Beast
   This word is used of flocks or herds of grazing animals (Ex.
   22:5; Num. 20:4, 8, 11; Ps. 78:48); of beasts of burden (Gen.
   45:17); of eatable beasts (Prov. 9:2); and of swift beasts or
   dromedaries (Isa. 60:6). In the New Testament it is used of a
   domestic animal as property (Rev. 18:13); as used for food (1
   Cor. 15:39), for service (Luke 10:34; Acts 23:24), and for
   sacrifice (Acts 7:42).

     When used in contradistinction to man (Ps. 36:6), it denotes a
   brute creature generally, and when in contradistinction to
   creeping things (Lev. 11:2-7; 27:26), a four-footed animal.

     The Mosaic law required that beasts of labour should have rest
   on the Sabbath (Ex. 20:10; 23:12), and in the Sabbatical year
   all cattle were allowed to roam about freely, and eat whatever
   grew in the fields (Ex. 23:11; Lev. 25:7). No animal could be
   castrated (Lev. 22:24). Animals of different kinds were to be
   always kept separate (Lev. 19:19; Deut. 22:10). Oxen when used
   in threshing were not to be prevented from eating what was
   within their reach (Deut. 25:4; 1 Cor.9:9).

     This word is used figuratively of an infuriated multitude (1
   Cor. 15:32; Acts 19:29; comp. Ps. 22:12, 16; Eccl. 3:18; Isa.
   11:6-8), and of wicked men (2 Pet. 2:12). The four beasts of
   Daniel 7:3, 17, 23 represent four kingdoms or kings.