Miss is the title used most often by single women.
Mrs. is used mostly by women in traditional marriages.
Ms. is used mostly by married women who keep their original last name and by divorced women.
That is a matter of preference for the woman. Many would use Mrs. to indicate that she had been married to the father of the child.
It is always Mrs. unless she asks you to use Ms.
It is always Mrs. unless she asks you to use Ms.
If you do not know if the woman is single; married or widowed then you can use 'Ms.' If you know they are single then use 'Miss' or 'Ms.' and 'Mrs.' for married women or widowed women.
Mrs.
Ms., Miss, Mr., and Mrs. are all honorific abbreviations. Ms. can be used for a single or married woman. Miss is reserved for single women who have never been married. Mr. is used for an adult man and Mrs. is used for a married or widowed woman.
Mrs. is when a women is married. Ms. is when they are not married. Miss is when thay are younger.
"Ms." is an intended title for all women, regardless of marital status. "Mrs." is intended for married women. So yes, you can use "Ms." for someone who is married and would also be called a "Mrs."
Always use Ms. in the exact same way you would use Mr., unless the woman has specified another title such as Miss or Mrs.
Miss. or Ms. is when a lady is single Mrs. is when the lady is married
Since Women's Liberation came into play during the 1960s some women do not want to be titled as Mrs. or Miss so they have shortened it for both married to single women to Ms. It is not that common now to use 'Ms' but a good idea to use it in a letter if one does not know if the person they are writing to is a Mrs. or a Miss.
When addressing a woman, you can use the title Ms. or Mrs. based on her preference.