ECH'O, n. L. echo; Gr.sound, to sound.

1. A sound reflected or reverberated from a solid body; sound returned; repercussion of sound; as an echo from a distant hill.

The sound must seem an echo to the sense.

2. In fabulous history, a nymph, the daughter of the Air and Tellus, who pined into a sound, for love of Narcissus.

3. In architecture, a vault or arch for redoubling sounds.

ECH'O, v.i. To resound; to reflect sound.

The hall echoed with acclamations.

1. To be sounded back; as echoing noise.

ECH'O, v.t. To reverberate or send back sound; to return what has been uttered.

Those peals are echoed by the Trojan throng.