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.
      [1913 Webster]

   2. To show some effect in return to a force; to act in
      response; to accord; to correspond; to suit.
      [1913 Webster]

            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.
      [1913 Webster]

            To every theme responds thy various lay. --Broome.
      [1913 Webster]

   3. To render satisfaction; to be answerable; as, the
      defendant is held to respond in damages. [U.S.]
      [1913 Webster]

   Syn: To answer; reply; rejoin. See Reply.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Respond \Re*spond"\, v. t.
   1. To answer; to reply.
      [1913 Webster]

   2. To suit or accord with; to correspond to. [R.]
      [1913 Webster]

            For his great deeds respond his speeches great.
                                                  --Fairfax.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Respond \Re*spond"\, n.
   1. An answer; a response. [R.]
      [1913 Webster]

   2. (Eccl.) A short anthem sung at intervals during the
      reading of a chapter.
      [1913 Webster]

   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"

Moby Thesaurus II by Grady Ward, 1.0:

111 Moby Thesaurus words for "respond":
   acknowledge, act, advocate, allege in support, alternate, answer,
   answer back, antiphon, apprehend, argue for, assert, bandy,
   be affected, be aware of, be conscious of, be in tune, be inspired,
   be involved, be moved, be quits with, be sensible of, behave,
   care about, catch the flame, catch the infection, champion, change,
   change color, color with emotion, come back, come back at, come in,
   commute, compensate, contend for, cooperate, counter,
   counterchange, defend, dig, echo, empathize with, espouse,
   exchange, experience, feel, feel for, flash back, get back at,
   get even with, give acknowledgment, give and take, give answer,
   hear, identify with, interchange, logroll, maintain, make a plea,
   pay back, perceive, permute, pity, plead for, react, rebut,
   reciprocate, reecho, refute, rejoin, rejoinder,
   relate to emotionally, reply, requite, respond to,
   respond to stimuli, response, retaliate, retort, return,
   return answer, return for answer, return the compliment,
   reverberate, riposte, say, say in defense, say in reply, see,
   sense, share, shoot back, smell, snap back, speak for,
   speak up for, stand up for, stick up for, support, sustain, swap,
   switch, sympathize with, take the bait, talk back, taste, touch,
   trade, transpose, uphold, urge reasons for



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.