The word 'Donna' (pronounced [ˈdɔnna]) in Italian corresponds to the the nouns 'Woman' or 'Lady' in modern English. The plural form of the word is Donne and is naturally female in grammatical gender.
It can also be used as a title of address, much in the same way that 'Lady' has a dual meaning, although this is increasingly archaic. Its antonym in Italian is Uomo or 'Man'.
Etymology
The word Donna is thought to share the same Latin root as the English word Dame, with the origin being the word Domus meaning house, and domina referring to the lady or mistress of the house.
Other Uses
Donna is a popular given or first name in English speaking countries, with its meaning being identical to the Italian translation. One notable example is the late American Disco singer Donna Summer.
The word 'Donna' may also be recognizable from the name of the plant Atropa belladonna, also colloquially known as Deadly Nightshade or Belladonna (meaning beautiful lady). There are examples of the word Donna being used as a place name, for example in the city located in Hidalgo County, Southern Texas (named for the daughter of a famous Rio Grande land developer).