A sound reflected from a surface and heard again.

Of sound: to be reflected and heard again; to reverberate.

• To reflect back a sound.

To repeat another’s words.

• To adopt and broadcast someone else’s opinion or sentiment.

Something that closely resembles or recalls an earlier thing.

• A lingering effect or trace.

Computing: the display of typed input or commands by a system.

Computing: to output text that repeats given input.