What is the meaning of Echo?

noun

• The repetition of a sound resulting from reflection of the sound waves.
  • usage: "she could hear echoes of her own footsteps"
  • synonyms: reverberation, sound reflection, replication
• Greek mythology. ( a nymph who was spurned by Narcissus and pined away until only her voice remained)
• A reply that repeats what has just been said.
• A reflected television or radio or radar beam.
• A close parallel of a feeling, idea, style, etc..
  • usage: "his contention contains more than an echo of Rousseau"; "Napoleon III was an echo of the mighty Emperor but an infinitely better man"
• An imitation or repetition.
  • usage: "the flower arrangement was created as an echo of a client's still life"

verb

• To say again or imitate.
  • usage: "followers echoing the cries of their leaders"
  • synonyms: repeat
• Ring or echo with sound.
  • usage: "the hall resounded with laughter"
  • synonyms: resound, ring, reverberate
• Call to mind.
  • usage: "His words echoed John F. Kennedy"
  • synonyms: recall