The word "dewinesses" is spelled with three syllables: /ˈdjuːiːnəsəz/. The first syllable, "dewi," is pronounced with a long "u" sound (/juː/), followed by a long "i" sound (/iː/) in the second syllable, "ness." The final syllable, "-es," is pronounced with a short "u" sound (/əz/). "Dewinesses" is the plural form of "dewiness," a noun meaning the state of being covered in or having the qualities of dew.