Miss should be used when referring to an unmarried woman, while “Mrs. is the proper title for a married woman. Many are often confused about the correct usage of “Ms. , which does not depend on marital status at all and can be used as a title for both unmarried and married women. If you know for sure who is and isn t married on your guest list, be sure to address the invitations as such. But, if there s someone on your guest list whose marital status you re not sure of, addressing them as a “Ms. is a safe and appropriate choice. It s also often preferred for older (thirty and up) women who are not married. . . Pronunciation
