Answer:

sone

Answer	Crossword Clue
SONE	Loudness measure
SONE	Loudness unit
SONE	Unit of loudness

SONE	Unit of sound
SONE	Sound unit
SONE	Volume unit
SONE	Sound measure
SONE	Acoustical unit
SONE	About 40 decibels
SONE	40-decibel unit
SONE	It's about 40 decibels

SONE	Volume measure
SONE	Acoustic measure
SONE	Acoustic unit
SONE	Audio measure
SONE	Sound amount
SONE	Unit of volume
SONE	Aural measure
SONE	Subjective sound unit

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.