MX

Meanings

1. Initialism of Missile, Experimental (original project name of the LGM-118 Peacekeeper ICBM).

1. Abbreviation of mail exchanger.
2. Abbreviation of motocross.
3. on early British stamps, Maltese Cross cancellation mark.

1. A gender-neutral title used instead of Mr (Mister), Mrs (Mistress), etc.

1. Abbreviation of management.

Etymology

Coined based on Mr and Ms, with x chosen as a "wildcard" character. First proposed jokingly in print in 1977.