unit of perceived loudness

SONE
List of words for the clue unit of perceived loudness from the crossword:
PHON BEL AMP VOLUME DECIBEL VOL AURAL ACRE LUMEN SOUND UFO SCENT ESSE DAWN ACHE TON CARAT ERG BYTE
WordClue
ELLunit of length
LUXSI derived unit of illuminance
ACREunit of area
INCHunit of length
LIRAmonetary unit of a number of countries
MILEunit of length
PECKunit of volume
WATTSI derived unit of power
WEEKtime unit
YARDunit of length
YUANThe basic unit of money in China
CORPSmilitary unit size
CURIEnon-SI unit of radioactivity
FARADunit of capacitance
HERTZSI unit for frequency
MONTHunit of time dividing the year
OUNCEunit of mass
PENNYunit of currency in various countries
QUARTunit of volume
MENACEperceived threat or danger
OUNCEunit of mass
KILOWATTunit of power