Echo

1. A wood or mountain nymph, regarded as repeating, and causing the reverberation of them.
2. To repeat with assent; to respond; to adopt.
3. To send back (a sound); to repeat in sound; to reverberate.
4. Fig.: Sympathetic recognition; response; answer.
5. A nymph, the daughter of Air and Earth, who, for love of Narcissus, pined away until nothing was left of her but her voice.
6. To give an echo; to resound; to be sounded back; as, the hall echoed with acclamations.
7. A sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound.