(Irish and Scottish patronymic surnames) son of.

A diminutive of the male given name Max. / (US, Canada) A diminutive for a person with a surname that starts with "Mac" or "Mc".

A Macintosh computer (made by Apple Inc.).

(informal) McMaster University

Prepended to a boy's name or surname as a (now somewhat formal) form of address. / A religious teacher, often as an honorific title. / The title of the head of certain colleges and schools.

(Wicca) One of the triune gods of the Horned God in Wicca alongside the Father and Sage and representing a boy or a young man / (banking) MasterCard

A short form of given names such as Mallory, Malcolm etc.

Alternative spelling of Macau

A surname.

A river in southern Germany, flowing from Bavaria to the Rhine. / A river in Northern Ireland, flowing into Lough Neagh. / A surname.