What does AIN mean in slang?

What title do you use when addressing a married teacher by her first name? What does being dressed elaborately mean? What was the code of behavior for feudalism? How do Japanese greet each other on New Year's? Faut pas êt' si bête c'est pas sorcie? How do I write a warning letter to an employee for carelessness? What is a sentence for the idiom to fall a prey? What does it mean when a person is bottled up? When is an exclamation mark used? What is the idiom puts his foot down? What are 3 things you should never do out of respect to the flag? Why do people get angry when they catch you sniffing their chair while they're out of the room? If you are writing a letter to residents Do you write Dear Residents or Dear residents? What would be an example of a greeting in a letter? Example of Thank You Letter? Is it proper etiquette to shake your doctors hand? What is the positive connotation of polite? What is the purpose of the tea ceremony? When someone denigrates another what have they done? Tu fais quoi manitenant par ce que je pense de toi beaucoup?