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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
Synonyms

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).


mac 2 American  
[mak] / mæk /
Or mack

noun

Informal.
  1. a mackintosh.

  2. McIntosh.


mac 3 American  
[mak] / mæk /
Mac 4 American  
[mak] / mæk /

noun

  1. a male given name.


Mac. 5 American  

abbreviation

  1. Maccabees.


M.Ac. 6 American  

abbreviation

  1. Master of Accountancy.


Mac- 7 American  
Also Mc-,
  1. a prefix found in many family names of Irish or Scottish Gaelic origin, as MacBride and Macdonald.


Mac 1 British  
/ mæk /

noun

  1. an informal term of address to a man

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

MAC 2 British  

abbreviation

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Mac. 3 British  

abbreviation

  1. Maccabees (books of the Apocrypha)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Mac- 4 British  

prefix

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

    MacDonald

    MacNeice

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mac 5 British  
/ mæk /

noun

  1. informal short for mackintosh mackintosh

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

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

They have taught her a few things: how to make mac and cheese, follow American football and wear university merchandise without shame.

From The Wall Street Journal Mar. 16, 2026

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

From Salon Feb. 12, 2026

“What’s wrong with mac and cheese, or chocolate chip cookies? American food,” Maddy adds.

From "A Place at the Table" by Saadia Faruqi and Laura Shovan

The lack of a defensive midfielder showed and it was revealing to see Iraola use Mac Allister just ahead of the back four after Joe Willock put Newcastle 2-1 up.

From BBC Aug. 23, 2026

Perhaps the most surprising name to be linked with City is Mac Allister, but the Blues have explored a potential move for him.

From BBC Aug. 13, 2026

As a Premier League winner, Mac Allister would bring top-flight experience and be a ready-made candidate to slot into City's midfield.

From BBC Aug. 13, 2026

Some media outlets including Mac Rumors saw the increase as a sign that price hikes were imminent for iPhone 17.

From The Wall Street Journal Aug. 11, 2026

“If we don’t get out of here, the DNR’s gonna find frozen Mac and Cheese when they make their morning rounds,” Owen said through chattering teeth.

From "Two Degrees" by Alan Gratz

“Mac Jones, for sure. Yeah, Mac. He’s the best,” Parker said.

From Washington Times Aug. 3, 2023

“My life was completely wrapped up in Fleetwood Mac. You can call in sick to a job, a boyfriend, even a husband, but you cannot call in sick to Fleetwood Mac – ever.”

From The Guardian Apr. 17, 2019

“It was only made for the Mac. It was less than one percent market share in the U.S. They like to say ‘low single digits.’

From The Verge Jun. 13, 2017

"He was the first person to buy a Mac. He was the first person to tell me about the Internet. I had no idea what he was talking about."

From Los Angeles Times Jul. 25, 2015

“Mac. Mac. Mac,” George said, saying Owen’s nickname with every panting breath he let out.

From "Two Degrees" by Alan Gratz

Apple tends to hold a second Mac- or iPad-focused event in the fall roughly every other year.

From Slate Sep. 11, 2018

Simply put: If your school requires any Mac- or Windows-only apps, then you can’t use an iPad in place of an actual laptop.

From Slate Jul. 27, 2018

He went farther in ten days than did Britisher Mac- Laren, covering 5,468 miles in 45 hours and 20 minutes of actual flying time.

From Time Magazine Archive

Kathlene Mac- Donell is rather better as the cabaret performer.

From Time Magazine Archive

While we were taking Bougainville, General Mac- Arthur’s forces would be landing on the western end of New Britain Island at Cape Gloucester to establish a new airfield there, too.

From "Code Talker: A Novel About the Navajo Marines of World War Two" by Joseph Bruchac

The U.S. company—home to brands such as MAC, Smashbox and Jo Malone—has been undergoing a business turnaround under new leadership.

From The Wall Street Journal Mar. 24, 2026

Wood said he simply took the one-year estimate in the study and multiplied it to account for Sacramento State’s five-year agreement with the MAC.

From Los Angeles Times Feb. 24, 2026

He said that its “consumer-facing” investments included opening new retail locations for its luxury fragrance brands while closing some of its MAC and Origins locations.

From MarketWatch Feb. 5, 2026

“Meanwhile, the MAC is out here playing real football in front of 14 people and a raccoon on a Tuesday night during a blizzard.”

From The Wall Street Journal Dec. 24, 2025

The "MAC" stood for Project MAC, the DARPA-funded research project that gave birth to the AI Lab and the Laboratory for Computer Science.

From Free as in Freedom: Richard Stallman's Crusade for Free Software by Sam Williams

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