echo (Noun) — (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained.
echo (Noun) — The repetition of a sound resulting from reflection of the sound waves. ex. "she could hear echoes of her own footsteps"
echo (Noun) — A reply that repeats what has just been said.
echo (Noun) — (electronics) a reflected television, radio or radar beam.
echo (Noun) — A close parallel of a feeling, idea, style, etc.. ex. "his contention contains more than an echo of Rousseau" ex. "Napoleon III was an echo of the mighty Emperor but an infinitely better man"
echo (Noun) — An imitation or repetition. ex. "the flower arrangement was created as an echo of a client's still life"
echo (Verb) — To say again or imitate. ex. "followers echoing the cries of their leaders"
echo (Verb) — Fill for a short time with sound and echoes. ex. "the hall echoed with laughter"
echo (Verb) — Call to mind. ex. "His words echoed John F. Kennedy"