Added 10 October 2026 cleanliness /ˈklɛn.li.nᵻs/ noun Categories: Describing WordsUncommon Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about cleanliness at Wordnik → Where our words come from → The property of being cleanly, or habitually clean; good hygiene. Ritual purity. Related Words: hygienicsanitarysanitationhygienecleansecleansinggroomingcleanerlatrinetoiletclean-upcleaning Back to today's word