reverberance vs plangency

reverberance and plangency both are nouns.

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

As nouns, reverberance and plangency are synonyms defined as:

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

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

reverberance (noun)	plangency (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