Formal:
* Caro/Cara: This is the most common and formal way to say "dear," similar to the Italian "caro/cara."
Informal:
* Mio/Mia: This translates to "my" and can be used as a term of endearment, similar to "my dear."
* Amor/Amora: This translates to "love" and can be used as a term of endearment, similar to "darling."
* Tesoro/Tesora: This translates to "treasure" and can be used as a term of endearment, similar to "sweetheart."
Other options:
* Beo/Bea: This translates to "beautiful" and can be used as a term of endearment.
* Fiamma/Fiamma: This translates to "flame" and can be used as a term of endearment.
The best way to choose the right word is to consider the relationship you have with the person you are speaking to and the tone you want to convey.