toothbrush

noun

tooth·​brush ˈtüth-ˌbrəsh 

: a brush for cleaning the teeth

Examples of toothbrush in a Sentence

Recent Examples on the Web

Your saliva flow drops overnight, Atria says, allowing the fluoride from your toothbrush to stay on your teeth longer and better protect against cavities. — Maggie Ryan, Flow Space, 23 July 2026

The latest addition to Philips’ Sonicare line of smart electric toothbrushes could take the guesswork out of your brushing routine. — Andrew Liszewski, The Verge, 22 July 2026

Although reinfection from one's own toothbrush is uncommon for most healthy people, some individuals have reason to be more cautious. — Daryl Austin, USA Today, 20 July 2026

An old toothbrush works great for areas around the faucet or the sink’s edges. — Mary Marlowe Leverette, The Spruce, 19 July 2026

Word History

First Known Use

1690, in the meaning defined above

Kids Definition

toothbrush

noun

tooth·​brush ˈtüth-ˌbrəsh 

: a brush for cleaning the teeth

Medical Definition

toothbrush

noun

tooth·​brush -ˌbrəsh 

: a brush for cleaning the teeth