Neutral:
* Married woman: This is the most straightforward and neutral term.
* Wife: This term specifically refers to a woman in a marital relationship.
Formal:
* Mrs. [Last Name]: This is used in formal settings like business correspondence.
Informal:
* Spouse: This is a gender-neutral term that can be used for either a husband or a wife.
* Partner: This term is becoming increasingly common, especially in informal contexts and when referring to same-sex couples.
Other options:
* Wifey: This is a more affectionate term used by a husband to refer to his wife.
* Missus: This is a casual term, often used in British English.
The best term to use depends on the context and your relationship with the person you are talking about.