Jump to:

• 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

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 /

noun

1. macaroni.

2. macaroni and cheese.

---

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

---

MAC ² British  

abbreviation

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

---

Mac. ³ British  

abbreviation

1. Maccabees (books of the Apocrypha)

---

Mac- ⁴ British  

prefix

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

   MacDonald

   MacNeice

---

mac ⁵ British  

/ mæk /

noun

1. informal short for mackintosh mackintosh

---

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

The company had previously planned to split into two separate businesses, one with brands including Heinz, Philadelphia and Kraft Mac & Cheese, and the other company’s portfolio featuring Oscar Mayer, Kraft Singles and Lunchables.

From The Wall Street Journal • May 6, 2026

Mortgage rates have risen since the first quarter of the year, when weekly readings by Freddie Mac pegged the average 30-year fixed mortgage rate below 6%.

From Barron's • May 5, 2026

And that’s why we opened up for lots of bands like Fleetwood Mac, Santana and all that stuff that helped Return to Forever.

From Los Angeles Times • May 4, 2026

And, recently, Mac minis are practically sold out to run artificial-intelligence agents using OpenClaw.

From The Wall Street Journal • May 3, 2026

Not only did Ms. Mac remember me, she missed me most of all.

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

Related Words

• PC
• data processor
• desktop computer
• personal computer