white noise

noun

1
a
: a heterogeneous mixture of sound waves extending over a wide frequency range compare pink noise
b
: a constant background noise
especially : one that drowns out other sounds
2
: meaningless or distracting commotion, hubbub, or chatter
the white noise of policy and politics in AmericaJoseph Nocera

Examples of white noise in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There are free apps or YouTube videos that play white noise for hours. Dani Blum, New York Times, 1 July 2025 Amazon’s sale even includes a travel plug adapter, solar power bank, portable white noise machine, and more. Genevieve Cepeda, Travel + Leisure, 29 June 2025 That price drop helps soften the blow of a premium tag, especially since these earbuds are doing more than just playing white noise. Shubham Yewale, PC Magazine, 5 June 2025 In our lab test, the fan measured 50.1 decibel reading at its lowest speed, which provided a nice white noise. Jessica Comstock, Better Homes & Gardens, 2 June 2025 See All Example Sentences for white noise

Word History

First Known Use

1943, in the meaning defined at sense 1a

Time Traveler
The first known use of white noise was in 1943

Browse Nearby Words

Cite this Entry

“White noise.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20noise. Accessed 21 Jul. 2025.

Kids Definition

white noise

noun
1
: an even mixture of sound waves extending over a wide frequency range
2
: a constant background noise
especially : one that drowns out other sounds

Medical Definition

white noise

noun
: a heterogeneous mixture of sound waves extending over a wide frequency range that has been used to mask out unwanted noise interfering with sleep

called also white sound

More from Merriam-Webster on white noise

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!