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echo [ˈɛkoʊ]

1 echo noun
  • a sound that is a copy of another sound and that is produced when sound waves bounce off a surface (such as a wall)
  • something (such as a feature or quality) that repeats or resembles something else
  • something that is similar to something that happened or existed before

2 echo verb
  • to be filled with sounds and especially with echoes
  • to fill a space, area, etc., with sounds and especially with echoes —sometimes used figuratively
  • to repeat (what someone else has said or written)