Definition
An echo is the repetition of a sound caused by the reflection of sound waves from a surface. It's like hearing your own voice bounce back in a canyon 🗣️. Unlike a direct sound, an echo arrives slightly later. It depends on the distance and reflective surface. Echoes are often associated with large, open spaces. An echo is a repeated sound, not the original. It can be a fun or a nuisance 🙉.