ringing vs reverberance

ringing and reverberance both are nouns.

Word	Noun	Adjective	Verb	Adverb
ringing	Yes	No	No	No
reverberance	Yes	No	No	No

As nouns, ringing and reverberance are synonyms defined as:

ringing and reverberance: having the character of a loud deep sound; the quality of being resonant

Other synonyms of ringing include plangency, resonance, sonority, sonorousness, vibrancy.

ringing (noun)	reverberance (noun)
having the character of a loud deep sound; the quality of being resonant	having the character of a loud deep sound; the quality of being resonant
the giving of a ring as a token of engagement
the sound of a bell ringing