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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:

Things like frozen truffle mac and cheese and saag paneer are now commonplace.

From MarketWatch ● Oct. 2, 2026

One project in the works: a buffalo mac and cheese packing 40 grams of protein for GLP-1 users trying to stave off muscle loss.

From The Wall Street Journal ● Aug. 19, 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

I think the first time I went, they had a really good oxtail mac and cheese.

From Los Angeles Times ● Apr. 10, 2026

Summer looked at me, shrugged-smiled, and took another bite of her mac and cheese.

From "Wonder" by R. J. Palacio

They also signed Marc Cucurella for £15m and sold him to Chelsea for £62m and brought in Alexis Mac Allister for £7m before selling him to Liverpool for a deal worth £55m.

From BBC ● Oct. 16, 2026

Mizuho cut its price targets for Fannie Mae and Freddie Mac, citing rising mortgage rates and other obstacles to an exit from conservatorship.

From Barron's ● Oct. 12, 2026

The FHFA, Fannie Mae and Freddie Mac all said in statements that the changes would modernize the credit-scoring system, making it more predictive, and create a safer and sounder market.

From The Wall Street Journal ● Oct. 12, 2026

The share of home buyers age 25 to 34 who used an older cosigner rose to 3.7% in 2022 from 1.6% in 1994, according to Freddie Mac.

From The Wall Street Journal ● Oct. 11, 2026

When Dottie first grew ill, Mac had struggled to provide the care she needed.

From "Eleven" by Tom Rogers

“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

“He fought dirty, Mac. So how ’bout shuttin’ up,” Red said.

From "The Great Santini" by Pat Conroy

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

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

From Time Magazine Archive

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

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

Why wasn’t the MAC threatening to send in the suits?

From The Wall Street Journal ● Sep. 9, 2026

The owner of beauty brands such as MAC, Smashbox and Jo Malone on Wednesday posted a loss of $116 million, or 32 cents a share, for its three months ended June 30.

From The Wall Street Journal ● Aug. 19, 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

Now this angle AMC, being known, the right-angled triangle MAC is easily resolved, since the side AC of that triangle, being the radius of the earth, is a known dimension.

From A History of Science — Volume 2 by Henry Smith Williams

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