body
The term 'corpo' in Italian is used just like 'body' in English. It can refer to the physical structure of a human or animal, but also to the central part of an object or mass. It is also used in various idiomatic expressions and proverbs, bearing similar meanings to those found in English. For example, 'A corpo morto' is an expression used to denote an action done with great effort, similar to the English phrase 'with all one’s might'.
My body is tired.
This sentence is expressing a personal physical state. It is used when someone is physically exhausted and their body needs rest.
The body of the letter is very long.
In this context, 'corpo' refers to the main text or content of the letter as opposed to other parts of the letter like the heading or footer.
We need to identify the body.
This is often said in a forensic context, where 'corpo' refers to the body of a deceased person that needs to be identified.