RESOUNDED (5 letters) The term REVERBED is a verb meaning to reflect sound multiple times, usually in an enclosed space. The crossword solutions for this term are ECHOED (6 letters) and RESOUNDED (5 letters). ECHOED means to repeat a sound, while RESOUNDED means to make a loud, deep sound. Both terms refer to the reflection of sound, but ECHOED is more specific to repeating a sound, while RESOUNDED is more general and can refer to any loud, deep sound.