whitening

noun

whit·​en·​ing ˈ(h)wīt-niŋ 

-ᵊn-iŋ

1

: the act or process of making or becoming white

2

: something that is used to make white : whiting

Examples of whitening in a Sentence

Recent Examples on the Web

What’s the best teeth whitening toothpaste? — Bestreviews, Chicago Tribune, 24 Apr. 2026

Many modern cruise lines now offer services like Botox, IV therapy and teeth whitening. — Nathan Diller, USA Today, 28 June 2026

At-home whitening has never been easier, and there are ways to incorporate steps to a brighter smile into almost any part of your oral hygiene routine. — Jaylyn Pruitt, Health, 19 Feb. 2026

Before choosing a whitening method, check the care label for guidance on water temperature, safe cleaning agents, and recommended drying methods. — Quincy Bulin, Southern Living, 1 July 2026

Word History

First Known Use

1576, in the meaning defined at sense 1

Rhymes for whitening

• brightening
• frightening
• heightening
• lightening
• tightening
• enlightening