The Collaborative International Dictionary of English v.0.48:

Steer \Steer\ (st[=e]r), n. [OE. steer, AS. ste['o]r; akin to D.
   & G. stier a bull, OHG. stior, Icel. stj[=o]rr,
   [thorn]j[=o]rr, Sw. tjur, Dan. tyr, Goth. stiur, Russ. tur',
   Pol. tur, Ir. & Gael. tarbh, W. tarw, L. taurus, Gr. tay^ros,
   Skr. sth[=u]ra strong, stout, AS. stor large, Icel. st[=o]rr,
   OHG. st[=u]ri, stiuri. [root]168. Cf. Stirk, Taurine, a.]
   A young male of the ox kind; especially, a common ox; a
   castrated taurine male from two to four years old. See the
   Note under Ox.
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The Collaborative International Dictionary of English v.0.48:

Steer \Steer\, n. [AS. ste['o]r, sti['o]r; akin to D. stuur, G.
   steuer, Icel. st[=y]ri. [root]168. See Steer, v. t.]
   [Written also stere.]
   A rudder or helm. [Obs.] --Chaucer.
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The Collaborative International Dictionary of English v.0.48:

Steer \Steer\, v. t.
   To castrate; -- said of male calves.
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The Collaborative International Dictionary of English v.0.48:

Steer \Steer\, n. [AS. ste['o]ra. See Steer a rudder.]
   A helmsman; a pilot. [Obs.] --Chaucer.
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The Collaborative International Dictionary of English v.0.48:

Steer \Steer\, v. t. [imp. & p. p. Steered (st[=e]rd); p. pr.
   & vb. n. Steering.] [OE. steeren, steren, AS. sti['e]ran,
   st[=y]ran, ste['o]ran; akin to OFries. stiora, stiura, D.
   sturen, OD. stieren, G. steuern, OHG. stiuren to direct,
   support, G. steuer contribution, tax, Icel. st[=y]ra to
   steer, govern, Sw. styra, Dan. styre, Goth. stiurjan to
   establish, AS. ste['o]r a rudder, a helm, and probably to
   Icel. staurr a pale, stake, Gr. stayro`s, and perhaps
   ultimately to E. stand. [root]168. Cf. Starboard, Stern,
   n.]
   To direct the course of; to guide; to govern; -- applied
   especially to a vessel in the water.
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         That with a staff his feeble steps did steer.
                                                  --Spenser.
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The Collaborative International Dictionary of English v.0.48:

Steer \Steer\, v. i.
   1. To direct a vessel in its course; to direct one's course.
      "No helmsman steers." --Tennyson.
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   2. To be directed and governed; to take a direction, or
      course; to obey the helm; as, the boat steers easily.
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            Where the wind
            Veers oft, as oft [a ship] so steers, and shifts her
            sail.                                 --Milton.
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   3. To conduct one's self; to take or pursue a course of
      action.
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WordNet (r) 3.0 (2006):

steer
    n 1: an indication of potential opportunity; "he got a tip on
         the stock market"; "a good lead for a job" [syn: tip,
         lead, steer, confidential information, wind,
         hint]
    2: castrated bull [syn: bullock, steer]
    v 1: direct the course; determine the direction of travelling
         [syn: steer, maneuver, manoeuver, manoeuvre,
         direct, point, head, guide, channelize,
         channelise]
    2: direct (oneself) somewhere; "Steer clear of him"
    3: be a guiding or motivating force or drive; "The teacher
       steered the gifted students towards the more challenging
       courses" [syn: guide, steer]