An Encylopedia Britannica Company

Ms.

Ms. (US) noun
or British Ms /ˈmɪz/
Ms. (US)
noun
or British Ms /ˈmɪz/
Britannica Dictionary definition of MS.
used as a title before a woman's name instead of Miss or Mrs.
Ms. can be used whether or not a woman is married.
compare miss, mrs.