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• mac
  mac

  noun

  fellow; bud (a familiar term of address to a man or boy whose name is not known to the speaker).
• Mac
  Mac

  noun

  a male given name.
• Mac.
  Mac.

  abbreviation

  Maccabees.
• M.Ac.
  M.Ac.

  abbreviation

  Master of Accountancy.
• Mac-
  Mac-

  a prefix found in many family names of Irish or Scottish Gaelic origin, as MacBride and Macdonald.
• MAC
  MAC

  abbreviation

  multiplexed analogue component: a transmission coding system for colour television using satellite broadcasting

mac

¹ American  

[mak] / mæk /

noun

(often initial capital letter)

1. fellow; bud (a familiar term of address to a man or boy whose name is not known to the speaker).

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mac ² American  

[mak] / mæk /

Or mack

noun

Informal.

1. a mackintosh.

2. McIntosh.

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mac ³ American  

[mak] / mæk /

noun

1. macaroni.

2. macaroni and cheese.

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Mac ⁴ American  

[mak] / mæk /

noun

1. a male given name.

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Mac. ⁵ American  

abbreviation

1. Maccabees.

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M.Ac. ⁶ American  

abbreviation

1. Master of Accountancy.

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Mac- ⁷ American  

Also Mc-,

1. a prefix found in many family names of Irish or Scottish Gaelic origin, as MacBride and Macdonald.

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Mac ¹ British  

/ mæk /

noun

1. an informal term of address to a man

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MAC ² British  

abbreviation

1. multiplexed analogue component: a transmission coding system for colour television using satellite broadcasting

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Mac. ³ British  

abbreviation

1. Maccabees (books of the Apocrypha)

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Mac- ⁴ British  

prefix

1. (in surnames of Scottish or Irish Gaelic origin) son of

   MacDonald

   MacNeice

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mac ⁵ British  

/ mæk /

noun

1. informal short for mackintosh mackintosh

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Etymology

Origin of mac¹

First recorded in 1650–60; special use of Mac

Origin of mac²

Shortened form

Origin of mac³

Shortened form

Origin of Mac-⁷

< Irish, Scots Gaelic mac son, Old Irish macc; akin to Welsh, Cornish mab

Example Sentences

Tossed with olive oil, tomatoes, jalapeño, feta and Parmesan cheese, the expertly al dente Rustichella rigatoni is not your everyday mac ‘n’ cheese dinner.

From Los Angeles Times • May 23, 2026

The offerings include returning items, such as a smoky burger and chicken sandwich, plus a new side — mac and cheese.

From MarketWatch • Apr. 29, 2026

Creamed spinach and mac and cheese will not stage a revolt.

From Salon • Feb. 12, 2026

Just make the mac and cheese for dinner.

From Slate • Jan. 20, 2026

“Shovel some more of my mac and cheese on your plate, Loll,” Yvonne added in.

From "The Stars Beneath Our Feet" by David Barclay Moore

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