[1] : The Collaborative International Dictionary of English v.0.48

echo \ech"o\, v. t. imp.  p. p. echoed; p. pr.  vb. n.
   echoing. -- 3d pers. sing. pres. echoes.
   1. to send back a sound; to repeat in sound; to
      reverberate.
      1913 webster

            those peals are echoed by the trojan throng.
                                                  --dryden.
      1913 webster

            the wondrous sound
            is echoed on forever.                 --keble.
      1913 webster

   2. to repeat with assent; to respond; to adopt.
      1913 webster

            they would have echoed the praises of the men whom
            they envied, and then have sent to the newspaper
            anonymous libels upon them.           --macaulay.
      1913 webster
see also:
echoed echoing echoes 

[2] : The Collaborative International Dictionary of English v.0.48

echoing \echoing\ adj.
   reflecting sounds so as to create multiple echoes; as, a
   hotel with echoing halls.
   wordnet 1.5

[3] : WordNet (r) 2.0

echoing
     adj : of sounds repeating by reflection; "a hotel with echoing
           halls" syn: echoinga, reechoing
see also:
echoinga reechoing 

[4] : Moby Thesaurus II by Grady Ward, 1.0

44 moby thesaurus words for "echoing":
   answering, antiphonal, battological, booming, confutative,
   duplicative, echoic, growling, imitative, iterative, lingering,
   parrotlike, persistent, reboant, rebounding, recapitulative,
   redundant, reduplicative, reechoing, refutative, reiterant,
   reiterative, rejoining, repeating, repercussive, repetitional,
   repetitionary, repetitious, repetitive, replying, resounding,
   respondent, responding, responsive, returning, reverberant,
   reverberating, reverberatory, rumbling, sounding, tautological,
   tautologous, thundering, undamped

Echoing >> E Words
Echoing, definition of term: Echoing
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