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whitener

American  
[hwahyt-n-er, wahyt-] / ˈʰwaɪt n ər, ˈwaɪt- /

noun

  1. a preparation for making something white, as a bleach, dye, or polish.

    a bottle of shoe whitener.

  2. a person or thing that whitens.

  3. a person who applies whitener, as in a manufacturing process.


whitener British  
/ ˈwaɪtənə /

noun

  1. a substance that makes something white or whiter

  2. a powdered substitute for milk or cream, used in coffee or tea

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of whitener

First recorded in 1605–15; whiten + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They arrived in West Hollywood at various times in the Aughts and Teens from places like Tampa or St. Louis with trunks full of teeth whitener and dreams.

From Salon • May 26, 2023

A California engineer named Walter Liew was caught stealing secrets relevant to the production of titanium dioxide, which is used as a whitener in paint and toothpaste.

From New York Times • Mar. 7, 2023

It is also used as a tooth whitener in some toothpastes, and as a common household cleaning agent.

From Seattle Times • Sep. 22, 2021

It is also used as a whitener in some toothpastes, and as a common household cleaning agent.

From Washington Post • Sep. 22, 2021

"Cleaning my white shoes," replied Rosemary, applying whitener vigorously.

From Rosemary by Lawrence, Josephine