Master |
For male children: Young boys were formerly addressed as "Master [first name]." This was the standard form for servants to use in addressing their employer's minor sons. It is also the courtesy title for the eldest son of a Scottish laird. |
Miss |
Formal title for unmarried females and for female children |
Mr |
Adult male (regardless of marital status) |
Mrs |
Adult females (usually just for married females, widows, and divorcées) |
Ms |
Adult females (used by those who are not strongly identified with their marital status or don't wish their marital status to be known; the female equivalent of Mr) |
Mx |
Does not indicate gender, usually an option for non-binary people (the gender-neutral equivalent of Mr and Ms) |
