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

Number Purchased by Readers: 123 Crest 3D Whitestrips Teeth Whitening Kit What to Know: The Crest 3D whitening kit has 44 strips and two more intensive one-hour treatments. —Toni Sutton, People.com, 29 Mar. 2025

Our testers tried many different whitening strips, including additional varieties from Crest and a kit from Kendall Jenner’s brand, Moon Oral Care. —Jamie Allison Sanders, People.com, 27 May 2025

Moon Oral Beauty Platinum Express Photo : Moon Oral Beauty Moon’s quick-dissolve whitening strips were already near perfect, and the latest improvements level them up to flawlessness. —Justin Fenner, Robb Report, 12 May 2025

Each kit includes 14 days’ worth of whitening via whitening strips as well as a whitening pen for touch ups. —Iman Balagam, Vogue, 13 Apr. 2025

Word History

First Known Use

1576, in the meaning defined at sense 1

Rhymes for whitening

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