noun

decibel

decibel

The noise level reached 100 decibels.

The noise level reached 100 decibels.

A whisper is about 30 decibels.

A whisper is about 30 decibels.

((number)) decibels a unit for measuring the loudness of sound The concert was over 120 decibels.

Synonyms: (unit of sound intensity); Antonyms: (none)

From 'deci-' (one-tenth) + 'bel' (a unit named after Alexander Graham Bell). A decibel is one-tenth of a bel.

Remember the 'Bell' in decibel refers to Alexander Graham Bell, inventor of the telephone. It's a unit of sound.

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