Synonyms:
echo, reverberation, sound_reflection, replication
Meaning: the repetition of a sound resulting from reflection of the sound waves; "she could hear echoes of her own footsteps"
Usage examples
Now was I where was heard the reverberation Of water falling into the next round, Like to that humming which the beehives make,
The duration of the reverberation depends upon the size and height of the room, material of floor and walls, furniture, size of audience, etc.