(text messaging) Initialism of Merry Christmas.

Initialism of master of ceremonies. / (music, slang) A rapper. / (knitting) Initialism of main colour. / Initialism of medical center. / (textiles) Initialism of matching colour.

To emcee, to act as a master of ceremonies. / (music) To rap.

(video games, informal) Initialism of Minecraft. / Initialism of Marine Corps. / Abbreviation of Mastercard.

Abbreviation of millicurie.

Abbreviation of megacycle, an obsolete unit equivalent to a megahertz

(Ireland, patronymic) Alternative form of Mac (Irish patronymic surnames meaning "son of")

A patronymic used to form common Irish and Scottish names, similar to the English -son. / (often derogatory) Used in combination with a non-name descriptive word to form mock names.

plural of MC

Initialism of multiple chemical sensitivity.