goad /ˈgod/
  刺棒,激勵物,刺激物(vt.)用刺棒驅趕,激勵,刺激,唆使,煽動
  Goad n.  A pointed instrument used to urge on a beast; hence, any necessity that urges or stimulates.
     The daily goad urging him to the daily toil.   --Macaulay.
  Goad, v. t. [imp. & p. p. Goaded; p. pr. & vb. n. Goading.] To prick; to drive with a goad; hence, to urge forward, or to rouse by anything pungent, severe, irritating, or inflaming; to stimulate.
     That temptation that doth goad us on.   --Shak.
  Syn: -- To urge; stimulate; excite; arouse; irritate; incite; instigate.
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  goad
       n 1: a pointed instrument used to prod into motion [syn: prod]
       2: a verbalization that encourages you to attempt something;
          "the ceaseless prodding got on his nerves" [syn: goading,
           prod, prodding, urging, spur, spurring]
       v 1: give heart or courage to [syn: spur]
       2: urge with or as if with a goad
       3: prod or urge as if with a log stick [syn: prick]
       4: goad or provoke,as by constant criticism; "He needled her
          with his sarcastic remarks" [syn: needle]
  Goad
     (Heb. malmad, only in Judg. 3: 31), an instrument used by
     ploughmen for guiding their oxen. Shamgar slew six hundred
     Philistines with an ox-goad. "The goad is a formidable weapon.
     It is sometimes ten feet long, and has a sharp point. We could
     now see that the feat of Shamgar was not so very wonderful as
     some have been accustomed to think."
       In 1 Sam. 13:21, a different Hebrew word is used, _dorban_,
     meaning something pointed. The expression (Acts 9:5, omitted in
     the R.V.), "It is hard for thee to kick against the pricks",
     i.e., against the goad, was proverbial for unavailing resistance
     to superior power.