[n] the persistence of a sound after its source has stopped
[n] a reply that repeats what has just been said
[n] (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained
[v] to say again or imitate; "followers echoing the cries of their leaders."
[v] ring or echo with sound; "the hall resounded with laughter"
[v] call to mind; "His words echoed John F. Kennedy"