E1C3H4O1E1S1
11 points
ECHOES is validvalid
ECHO, a repetition of sound by reflection of sound waves [n] / ECHO, to reverberate [v]
ECHO, a reflected sound [n]
ECHO, a repetition of sound by reflection of sound waves [n] / ECHO, to reverberate [v]
ECHO, a reflected sound [n]