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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:

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

If I’m in the cooking mood, I love making comfort food like chicken and rice with cabbage and mac and cheese.

From Los Angeles Times Apr. 10, 2026

Or, is it simply opening a box of mac & cheese and zhuzh-ing it up with a few spices?

From Salon Feb. 26, 2026

Just make the mac and cheese for dinner.

From Slate Jan. 20, 2026

Maybe they just thought the Thai mac and cheese was so good it needed an armed escort.

From "The Son of Neptune" by Rick Riordan

The singer is a survivor of tragedy and heartbreak, including the death of her former boyfriend Mac Miller and the Manchester bombing that killed 22 fans after one of her concerts in 2017.

From BBC Aug. 16, 2026

Trump toured a Flextronics facility in 2019 with Cook where Apple’s Mac Pro computers were being made.

From The Wall Street Journal Aug. 13, 2026

Apple has since discontinued the Mac Pro as products like the Mac Mini have proved more popular.

From The Wall Street Journal Aug. 13, 2026

Throughout the week people have been able to attend a dedicated Irish Language Hub at The Mac, which was also the venue for a performance by singer Kate Nash.

From BBC Aug. 9, 2026

However, I know that surprises can sometimes be bad, like the day Ms. Mac left me forever.

From "The World According to Humphrey" by Betty G. Birney

“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

“They’re all good ones, Mr. Mac. Some of them just need more support than others.”

From "The Skin I'm In" by Sharon G. Flake

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

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

“I know Brock Purdy HAS to start if he’s healthy but this is a hot hand situation right now and MAC is rolling!”

From The Wall Street Journal Nov. 13, 2025

Inspired by her time as a UC Santa Barbara Chicano Studies major and retail jobs at stores like MAC Cosmetics, her gender inclusive and ethically made “Mexi-goth” brand was a hit out the gate.

From Los Angeles Times Oct. 30, 2025

In 1962, computer scientists and hackers involved in MIT's Project MAC, an early forerunner of the AI Lab, took steps to alleviate this frustration.

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

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