cleanliness

noun

clean·​li·​ness ˈklen-lē-nəs How to pronounce cleanliness (audio)
Synonyms of cleanlinessnext
: the quality or state of being clean : the practice of keeping oneself or one's surroundings clean
Though a stale remark, it can hardly be said too often, that personal cleanliness is one of the necessary agents to health …Walt Whitman
The Romans spent hours at their elaborate bathhouse complexes, but not everyone equated cleanliness with virtue …Sara Ivry
This cleanliness is necessary to ensure that no dust or particles end up on the silicon surface during the processing of the chip.Robert J. Cone

Examples of cleanliness 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.
The Salvation Army Thrift Store closest to my home in Santa Fe seems to have relaxed last century’s strict emphasis on cleanliness. Caity Weaver, The Atlantic, 12 June 2026 Next, choosing the right material for your kitchen pegboard is critical, not only for aesthetics but also for long-term functionality and cleanliness. Better Homes & Gardens, 11 June 2026 This is not a matter of cleanliness. Rachel McRady, PEOPLE, 11 June 2026 As a subsidiary of the global corporation, 7-Eleven Japan stands out from its counterpart in other countries for its higher-quality food and higher standards of cleanliness. Ian Servantes, Footwear News, 10 June 2026 See All Example Sentences for cleanliness

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of cleanliness was in the 15th century

Cite this Entry

“Cleanliness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cleanliness. Accessed 20 Jun. 2026.

More from Merriam-Webster on cleanliness

Love words? Need even more definitions?

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

More from Merriam-Webster