partner
The Italian word for 'partner' is also 'partner'. It is used in business and personal contexts to refer someone to whom one is closely associated with. For example, in a business context, a partner is a person who shares or is associated with another in some action or endeavor. In a personal context, this could be used to refer a life partner.
I can't wait to see you, partner.
In the sentence, 'partner' is used to address someone directly. This is an example of how 'partner' can be used in everyday conversation.
My partner is incredibly supportive.
This sentence emphasizes a positive characteristic in someone's partner, here the characteristic being supportiveness.
My partner and I have a cat.
This sentence recounts the presence of a pet in the domestic life of the speaker and their partner.