Cara mia: My dear 

Signora : Mrs ( married women)

Signorina : Miss ( unmarried women)

Signor : Mr ( unmarried men)

Sigore: Mr ( older married men)

Grandpa: Nonno 

Grandma: Nonna

Uncle: Zio 

Aunt: Zia 

Sister: Sorella 

Brother: Fratello 

Cousin (male): Cugino 

Cousin (female): Cugina 

Brother-in-Law: Cognato 

Sister-in-Law: Cognata 

***

I may add new ones as I continue to write, thank you for reading!