Crossword Genius

Effect when shouting into a canyon-anyon-anyon (4)

Ross

I believe the answer is:

echo

(Other definitions for echo that I've seen before include "Repeating of sound" , "Parrot" , "Radio operator's word for 'E'" , "Reflect in Czechoslovakia" , "Sound returning some moments later" .)

I've seen this clue in the Universal.
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