Ms BrE AmE British English , Ms. American English /mɪz, məz/
used before a woman’s family name when she does not want to be called ‘Mrs’ or ‘Miss’, or when you do not know whether she is married or not ⇨ miss , Mrs :
Dear Ms Johnson, ...
Ms BrE AmE British English , Ms. American English /mɪz, məz/
used before a woman’s family name when she does not want to be called ‘Mrs’ or ‘Miss’, or when you do not know whether she is married or not ⇨ miss , Mrs :
Dear Ms Johnson, ...
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012