event vs reverberation

event and reverberation both are nouns.

Word	Noun	Adjective	Verb	Adverb
event	Yes	No	No	No
reverberation	Yes	No	No	No

As nouns, reverberation is a hyponym of event; that is, reverberation is a word with a more specific, narrower meaning than event:

event (noun)	reverberation (noun)
something that happens at a given place and time	the repetition of a sound resulting from reflection of the sound waves
a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory	a remote or indirect consequence of some action
a phenomenon that follows and is caused by some previous phenomenon
a special set of circumstances