What is the noun form of acquaint?

What is another word for using cordially? Where do you place your own address on an envelope? What to do when you are insulted by everyone? How can I address a letter to two people? In what type of situation is laughing loudly unacceptable? Formal wear for women? Why does Mr Delmonico try to confuse his wife? Im not sure you should send your boyfriend a text on his birthday because you haven't spoken for 18 days? What does the saying you can have too much of a good thing mean? What does the initials MIM mean after someones name? Is everyone plural or singular? What is the proper salutation for a knighted individual? What is the proper salutation used in addressing the president? What are some slangs to use when talking with friends? What is the name for the masculine scarf worn by men in formal wear? What does bien aller mean? How are you informal in french? What is a bumboclart? What does bienvenue a' la France? Who to address cover letter to when no name is provided?