If a guest is a child, feel free to use “Miss.” If she’s an unmarried adult, go with “Miss” or “Ms.” (Note that “Ms.” is often preferred for women 18 and up). If she’s married and you know her chosen title, write that. If you’re unsure, “Ms.” is a safe and appropriate choice.

What do you write in marital status single or unmarried?

Displays the marital status of an unmarried person. Both unmarried and single are words that purport to be gender-neutral. Marital status is used to show whether the person is married or not. Weddings or marriages are an integral part of society.

How do we call a person who is not married?

bachelor. noun. a man who has never been married. It is more usual to say that someone who is not married is single.