The Collaborative International Dictionary of English v.0.48:

Respond \Re*spond"\ (r?*sp?nd"), v. i. [imp. & p. p.
   Responded; p. pr. & vb. n. Responding.] [OF. respondre,
   F. r['e]pondre, fr. L. respondere, responsum; pref. re- re- +
   spondere to promise. See Sponsor.]
   1. To say somethin in return; to answer; to reply; as, to
      respond to a question or an argument.
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   2. To show some effect in return to a force; to act in
      response; to accord; to correspond; to suit.
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            A new affliction strings a new cord in the heart,
            which responds to some new note of complaint within
            the wide scale of human woe.          --Buckminster.
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            To every theme responds thy various lay. --Broome.
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   3. To render satisfaction; to be answerable; as, the
      defendant is held to respond in damages. [U.S.]
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   Syn: To answer; reply; rejoin. See Reply.
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The Collaborative International Dictionary of English v.0.48:

Respond \Re*spond"\, v. t.
   1. To answer; to reply.
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   2. To suit or accord with; to correspond to. [R.]
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            For his great deeds respond his speeches great.
                                                  --Fairfax.
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The Collaborative International Dictionary of English v.0.48:

Respond \Re*spond"\, n.
   1. An answer; a response. [R.]
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   2. (Eccl.) A short anthem sung at intervals during the
      reading of a chapter.
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   3. (Arch.) A half pier or pillar attached to a wall to
      support an arch. --Oxf. Gloss.
      [1913 Webster] Respondence

WordNet (r) 3.0 (2006):

respond
    v 1: show a response or a reaction to something [syn: react,
         respond]
    2: react verbally; "She didn't want to answer"; "answer the
       question"; "We answered that we would accept the invitation"
       [syn: answer, reply, respond]
    3: respond favorably or as hoped; "The cancer responded to the
       aggressive therapy"

The Devil's Dictionary (1881-1906):

RESPOND, v.i.  To make answer, or disclose otherwise a consciousness
of having inspired an interest in what Herbert Spencer calls "external
coexistences," as Satan "squat like a toad" at the ear of Eve,
responded to the touch of the angel's spear.  To respond in damages is
to contribute to the maintenance of the plaintiff's attorney and,
incidentally, to the gratification of the plaintiff.