mac

1 of 6

noun (1)

ˈmak 

variants or mack

British

: mackintosh

mac

2 of 6

noun (2)

informal

: macaroni

—usually used in the phrases mac and cheese and mac 'n' cheese

For those tired of seafood—it happens—a homey mac and cheese was the comfort food for the day.

—Sam Gugino

Dear Barbecue Joint: You make amazing mac 'n' cheese … but must you add crumbled bacon?

—Julie R. Smith

Mac

3 of 6

noun (3)

ˈmak 

informal + old-fashioned

: fellow

—used informally to address a man whose name is not known

Mac

4 of 6

abbreviation (1)

Machabees

Mac

5 of 6

abbreviation (2)

variants or Macc

Maccabees

MAC

6 of 6

abbreviation (3)

military airlift command

Synonyms of mac

Noun (1)

• raincoat
• slicker
• trench
• mackintosh

Examples of mac in a Sentence

Noun (1)

I'm glad the little nipper remembered his mac today, because it's supposed to rain.

Recent Examples on the Web

Noun

This is just one of several recalls to hit ALDI products in recent months, including more than 500,000 boxes of mac and cheese. — Drew Pittock, USA Today, 6 July 2026

Baking this mac and cheese on a sheet pan guarantees creamy centers and crispy edges in every bite. — Sarah Martens, Better Homes & Gardens, 4 July 2026

Word History

Etymology

Noun (3)

Mac-, Mc-, patronymic prefix in Scottish and Irish surnames

First Known Use

Noun (1)

1901, in the meaning defined above

Noun (2)

1920, in the meaning defined above

Noun (3)

circa 1918, in the meaning defined above

Phrases Containing mac

• mac and cheese

Rhymes for mac

• ack
• brack
• clack
• crack
• dak
• flack
• flak
• hack
• jack
• knack
• lac
• lack

Medical Definition

mac

1 of 2 abbreviation

macerate

MAC

2 of 2 abbreviation

1

maximum allowable concentration

2

Mycobacterium avium complex