The contraction "Ms." is short for "Mistress." ... When referring to a woman whose marital status is unknown, it is nearly always safe to use "Ms." It is also nearly always safe to use "Ms." if the woman has been divorced or widowed and it is unknown whether she wants to remain a "Mrs." or revert to "Miss."

Is it Ms when you are widowed?

A widow might also go by “Ms.” if it's been many years since her spouse passed away. If so, she might also change her last name back to her maiden name. However, as mentioned, “Mrs.” is much more common, and a widow normally keeps her married name.

Do you become Ms after husband dies?

Although there are no legal, grammatical, or lexicographical rules governing what courtesy title is "correct" for a widow, in general, when a woman's husband dies, she retains the title of Mrs. ... But, when in doubt, stick with Mrs.