/ Dictionary / Index M mac: Meaning and Definition of Find definitions for: mac Pronunciation: (mak), [key] — n. Informal. fellow; bud (a familiar term of address to a man or boy whose name is not known to the speaker). mac Pronunciation: (mak), [key] — n. Informal. a mackintosh. McIntosh. Mac Pronunciation: (mak), [key] — n. a male given name. Mac- Pronunciation: [key] a prefix found in many family names of Irish or Scottish Gaelic origin, as MacBride and Macdonald. Mac. Pronunciation: [key] Maccabees. M.Ac. Pronunciation: [key] Master of Accountancy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mac (Thesaurus) Mabuse macabre Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language