Mx.

Mx, usually pronounced /ˈməks/, /ˈmɪks/ or /ˈmʌks/ (miks or muks), is a British English-language neologistic honorific for use alongside Mr., Ms., etc. that does not indicate gender. It is often the only option for nonbinary people, as well as those who do not wish to reveal their gender. It is a gender-neutral title that is now widely accepted by the Government of the United Kingdom and many businesses in the United Kingdom.

The word was first proposed in the late 1970s. The "x" is intended to stand as a wildcard character (cf. 'Tx' in electronics, short for 'transmit'), and does not imply a "mixed" gender.

Some English users now avoid the use of Mrs. as they consider defining women by their marital status as sexist; as a result, most of them use the honorifics Mr. and Ms. respectively for men and women.

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