Morto vs. defunto vs. deceduto

The Italian language has several words to describe someone who is no longer alive, including 'morto', 'defunto', and 'deceduto'. While they all generally mean 'dead' or 'deceased', they are used in different contexts and carry slightly different connotations.

Morto

'Morto' is the most common and straightforward word for 'dead'. It is used in everyday language and can be applied to both people and animals.
Il gatto è morto ieri.
(The cat died yesterday.)
Hanno trovato un uomo morto nel parco.
(They found a dead man in the park.)

Defunto

'Defunto' is a more formal term for 'deceased'. It is typically used in legal or official contexts and refers specifically to a person who has died.
I beni del defunto saranno distribuiti secondo il testamento.
(The deceased's assets will be distributed according to the will.)
La cerimonia in memoria del defunto si terrà domani.
(The memorial ceremony for the deceased will be held tomorrow.)

Deceduto

'Deceduto' is also a formal term meaning 'deceased', but it is often used in medical or official reports. It emphasizes the act of passing away rather than the state of being dead.
Il paziente è deceduto alle 3:45 del mattino.
(The patient passed away at 3:45 in the morning.)
Secondo il rapporto, ci sono stati tre deceduti nell'incidente.
(According to the report, there were three deceased in the accident.)

Summary

While 'morto' is the most common term for 'dead' in Italian, 'defunto' and 'deceduto' are more formal alternatives. 'Defunto' is often used in legal contexts, while 'deceduto' is common in medical and official reports. The choice between these words depends on the context and level of formality required.