mac

noun (1)
\ ˈmak How to pronounce mac (audio) \
variants: or

Definition of mac

 (Entry 1 of 6)

British

mac

noun (2)

Definition of mac (Entry 2 of 6)

informal
: macaroni commonly used in the compounds 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 GuginoDear Barbecue Joint: You make amazing mac 'n' cheese … but must you add crumbled bacon?— Julie R. Smith

Mac

noun (3)
\ ˈmak How to pronounce Mac (audio) \

Definition of Mac (Entry 3 of 6)

: fellow used informally to address a man whose name is not known

Definition of Mac (Entry 4 of 6)

Machabees
variants: or Macc

Definition of Mac (Entry 5 of 6)

Maccabees

Definition of MAC (Entry 6 of 6)

military airlift command

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Synonyms for mac

Synonyms: Noun (1)

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Examples of mac in a Sentence

Noun (1) I'm glad the little nipper remembered his mac today, because it's supposed to rain.

First Known Use of mac

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

History and Etymology for mac

Noun (3)

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

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Cite this Entry

“Mac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mac. Accessed 15 Jun. 2021.

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More Definitions for mac

Mac

noun

English Language Learners Definition of Mac

US, informal + old-fashioned + sometimes impolite used to speak to a man who you do not know

Medical Definition of mac

 (Entry 1 of 2)

macerate

Medical Definition of MAC (Entry 2 of 2)

1 maximum allowable concentration
2 Mycobacterium avium complex

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