Grand Canyon shout

noun

1. The repetition of a sound caused by reflection of sound waves
2. The sound due to such reflection
3. A repetition or imitation of another reflection
4. Repercussion, result
5. Trace, vestige
6. Response
7. One who closely imitates or repeats another's words, ideas, or acts
8. A soft repetition of a musical phrase
9. The repetition of a received radio signal due especially to reflection of part of the wave from an ionized layer of the atmosphere

verb

1. To resound with echoes
2. To produce an echo
3. Repeat, imitate

   "children echoing their teacher's words"

4. To restate in support or agreement

   "his successor echoed his opinion"

5. To be reminiscent of evoke

   "music that echoes an earlier time"

6. To send back (a sound) by the reflection of sound waves

noun

1. A nymph in Greek mythology who pines away for love of Narcissus until nothing is left of her but her voice

communications code word

1. Used as a code word for the letter e

noun

1. A room with sound-reflecting walls used for producing hollow or echoing sound effects

noun

1. An instrument for determining the depth of a body of water or of an object below the surface by sound waves