I recommend that you ASK the young lady in question, as some prefer one to the other.
"Ms." is a title used for women regardless of their marital status, while "Miss" is used for unmarried women. It is more modern and respectful to use "Ms." in professional or formal settings to avoid making assumptions about a woman's marital status.
Miss, Ms , or a title like Dr may be used for any unmarried woman, Unless she is a widow and still wishes to be called Mrs. Whatshername.
"Miss" is used for an unmarried woman. "Mrs." is used for a married woman. "Ms." may be used for either.
Ms for either/or, Miss for unmarried. The former is used more frequently these days as Miss is seen to be slightly old-fashioned, or not "politically correct" as it should make no difference whether a woman is married or unmarried (or formerly married) in official or business relationships.
That depends on what you know about the person. If they are unmarried, you can use Miss. If you don't know, or don't want to impose the status, you would use Ms.
The proper prefix would be "Ms." "Miss" is for unmarried women. "Mrs." is used for married women. "Ms." is used when marital status is unknown or when the woman does not disclose it intentionally.
American people use the title Ms. to address women, over 18 that are either married or unmarried. Women who are under 18 are addressed as Miss.
You can address an unmarried woman as "Ms." just as well as a married woman. In a situation where you are unsure of the marital status, "Ms." is a safe form of address, and avoid "Miss" and "Mrs."
The usage is consistent around the world. Mrs. means a married woman, a Miss is unmarried and Ms in used to avoid any indication of marital status.
It means an unmarried woman in Spanish. A married woman is Senora. So 'Miss' or 'Ms'
A adult Man is always Mr. and a Woman unmarried is Ms. and Married is Mrs. Children are Male is Master and a Female is Miss
Mr. = Mister (or Master for a young boy). Mrs. = Mistress (a married woman) Miss = (an unmarried woman)., Ms. = is used when you do not know is the lady is a Mrs. or a Miss.