Main Entry: echo

Pronunciation: \ˈek-(ˌ)ō\

Function: noun

Inflected Form(s): plural ech·oes also echos

1 : the repetition of a sound that is caused by reflection of sound waves
2 : the sound that is due to reflection of sound waves

—echo verb, ech·oed; echo·ing \ˈek-(ˌ)ō-iŋ, ˈek-ə-wiŋ\