The Collaborative International Dictionary of English v.0.48:

Hear \Hear\ (h[=e]r), v. t. [imp. & p. p. Heard (h[~e]rd); p.
   pr. & vb. n. Hearing.] [OE. heren, AS,. hi['e]ran,
   h[=y]ran, h[=e]ran; akin to OS. h[=o]rian, OFries. hera,
   hora, D. hooren, OHG. h[=o]ren, G. h["o]ren, Icel. heyra, Sw.
   h["o]ra, Dan. hore, Goth. hausjan, and perh. to Gr.
   'akoy`ein, E. acoustic. Cf. Hark, Hearken.]
   1. To perceive by the ear; to apprehend or take cognizance of
      by the ear; as, to hear sounds; to hear a voice; to hear
      one call.
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            Lay thine ear close to the ground, and list if thou
            canst hear the tread of travelers.    --Shak.
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            He had been heard to utter an ominous growl.
                                                  --Macaulay.
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   2. To give audience or attention to; to listen to; to heed;
      to accept the doctrines or advice of; to obey; to examine;
      to try in a judicial court; as, to hear a recitation; to
      hear a class; the case will be heard to-morrow.
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   3. To attend, or be present at, as hearer or worshiper; as,
      to hear a concert; to hear Mass.
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   4. To give attention to as a teacher or judge.
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            Thy matters are good and right, but there is no man
            deputed of the king to hear thee.     --2 Sam. xv.
                                                  3.
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            I beseech your honor to hear me one single word.
                                                  --Shak.
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   5. To accede to the demand or wishes of; to listen to and
      answer favorably; to favor.
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            I love the Lord, because he hath heard my voice.
                                                  --Ps. cxvi. 1.
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            They think that they shall be heard for their much
            speaking.                             --Matt. vi. 7.
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   Hear him. See Remark, under Hear, v. i.

   To hear a bird sing, to receive private communication.
      [Colloq.] --Shak.

   To hear say, to hear one say; to learn by common report; to
      receive by rumor. [Colloq.]
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The Collaborative International Dictionary of English v.0.48:

Hear \Hear\, v. i.
   1. To have the sense or faculty of perceiving sound. "The
      hearing ear." --Prov. xx. 12.
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   2. To use the power of perceiving sound; to perceive or
      apprehend by the ear; to attend; to listen.
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            So spake our mother Eve, and Adam heard,
            Well pleased, but answered not.       --Milton.
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   3. To be informed by oral communication; to be told; to
      receive information by report or by letter.
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            I have heard, sir, of such a man.     --Shak.
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            I must hear from thee every day in the hour. --Shak.
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   To hear ill, to be blamed. [Obs.]

            Not only within his own camp, but also now at Rome,
            he heard ill for his temporizing and slow
            proceedings.                          --Holland.

   To hear well, to be praised. [Obs.]
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   Note: Hear, or Hear him, is often used in the imperative,
         especially in the course of a speech in English
         assemblies, to call attention to the words of the
         speaker.
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               Hear him, . . . a cry indicative, according to
               the tone, of admiration, acquiescence,
               indignation, or derision.          --Macaulay.
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WordNet (r) 3.0 (2006):

hear
    v 1: perceive (sound) via the auditory sense
    2: get to know or become aware of, usually accidentally; "I
       learned that she has two grown-up children"; "I see that you
       have been promoted" [syn: learn, hear, get word, get
       wind, pick up, find out, get a line, discover,
       see]
    3: examine or hear (evidence or a case) by judicial process;
       "The jury had heard all the evidence"; "The case will be
       tried in California" [syn: hear, try]
    4: receive a communication from someone; "We heard nothing from
       our son for five years"
    5: listen and pay attention; "Listen to your father"; "We must
       hear the expert before we make a decision" [syn: listen,
       hear, take heed]

Moby Thesaurus II by Grady Ward, 1.0:

84 Moby Thesaurus words for "hear":
   apprehend, approve of, arbitrate, ascertain, attend, attend to,
   auscultate, be all ears, be aware of, be conscious of, be informed,
   be sensible of, be told, bend an ear, bug, catch, catch on,
   charge the jury, cock the ears, condone, conduct a trial, consider,
   determine, discover, eavesdrop, entertain, examine by ear,
   experience, feel, find, find out, gather, get, get an earful,
   get wind of, give attention, give audience to, give ear,
   give ear to, hark, have the facts, hear of, hear out, hear tell of,
   hearken, hearken to, hearsay, heed, hold court, hold the scales,
   intercept, judge, know, know well, learn, lend an ear, listen,
   listen at, listen in, listen to, officiate, overhear,
   pay attention to, perceive, pick up, referee, respond,
   respond to stimuli, sanction, see, sense, sit in judgment,
   sit in on, smell, take in, tap, taste, touch, try, try a case,
   umpire, understand, unearth, wiretap