What does Ms. stand for?
| Full form | Courtesy Title for a Woman |
|---|---|
| Category | Communication & everyday language |
| Type | Abbreviation |
The title Ms. is a courtesy title for a woman; it does not state whether she is married. It is a title with a meaning, rather than an initialism with a word-for-letter full form.
Merriam-Webster records Ms. as a US form and Ms as a British form. Use the person’s stated title and name rather than trying to infer marital status from it. The dictionary gives 1901 as a first-known-use date for this title noun, not for every abbreviation written MS. Its probable blend explanation is also different from a literal expansion into Married, Miss or Mrs.

Meaning in context
- Ms.
- A conventional courtesy title; it has no required letter-by-letter expansion.
- Courtesy title
- Its role in a name, rather than a statement of marital status.
Practical examples
Avoid an invented expansion
- Before
Ms. stands for Married and proves the recipient is married.
- After
Ms. is a courtesy title that does not state marital status.
Expanding the letters into an invented word changes the meaning.
Preserve the name preference
- Before
The title lets me replace the person’s stated name with a guessed married name.
- After
Retain the person’s stated name and title.
A courtesy title does not authorize assumptions about a person’s name or relationship.
Original illustrative examples, not quotations or reports of actual events.
Use Ms. with clarity
What does Ms. tell me about a person’s title, and what does it leave unstated?
See all guidance
Address a person
Follow the stated title.
Ms. Example Surname, when that is the person’s preference.
Read the meaning
Leave marital status unspecified.
Ms. does not state whether the person is married.
Read a historical date
Keep it attached to this title.
The dictionary’s 1901 date belongs to the title noun.
Preserve the person’s stated title without inventing a marital-status expansion.
Documented origin and history
Merriam-Webster records 1901 as the first-known-use year for the courtesy-title noun Ms.
This is the dictionary’s attributed record for this noun, not proof of the first-ever use or an origin date for millisecond, medical MS or every other abbreviation.
1901Dictionary’s first-known-use record for the title
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By AcronymIndex Editorial Team · Editorial policy