decibel
noun
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How to pronounce decibel:

Definition of decibel:

decibel (noun):
a logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity.
a unit for expressing the ratio of two amounts of electric or acoustic signal power equal to 10 times the common logarithm of this ratio

Synonyms for decibel:

babel
blare
boom
brawl
bruit
cacophony
chatter
clamor
clangor
db
din
discordance
noise
racket
rattle
roar

Antonyms for decibel:

calm
calmness
hush
noiselessness
peace
peace and quiet
peacefulness
quiet
quietness
quietude
serenity
silence
silentness
soundlessness
still
stillness
tranquility
tranquillity