A term of address is any word, phrase, name, or title used to address another person.
A term of address may be friendly (dude, sweetheart), unfriendly (You idiot!), neutral (Jerry, Marge), respectful (Your honor), disrespectful (buddy, said with sarcasm), or comradely (My friends). As an important feature of interface between language and society, address terms can provide valuable sociolinguistic information about the interlocutors, their relationship and their circumstances. *
* The realization of address terms in modern Persian in Iran:
Mohammad Aliakbari/Arman Toni (Ilam University)