mag·​num | \ ˈmag-nəm How to pronounce magnum (audio) \

Definition of magnum

 (Entry 1 of 2)

: a large wine bottle holding about 1.5 liters



Definition of Magnum (Entry 2 of 2)

used for revolvers

Examples of magnum in a Sentence

Recent Examples on the Web: Noun

The friend’s father had kept the .357 magnum and two other guns secured with gun locks in a plastic container in his bedroom closet, but keys to the locks and ammunition also were in the container, police said. Dave Collins, The Seattle Times, "Teen’s death spurs federal, state safe gun storage bills," 22 Jan. 2019 Of course the magnum (a double-size bottle) must be a wine of quality, not some supersize grocery-store plonk. Lettie Teague, WSJ, "The Wines We’ll Be Drinking in 2019," 19 Dec. 2018 Heloise Dear Heloise: What is a magnum and a jeroboam of champagne? Heloise, Houston Chronicle, "A yearning for Bootlegger Beans," 10 July 2018 Dale, a magnum is 2 quarts, which usually fills 10 glasses. Heloise, Houston Chronicle, "A yearning for Bootlegger Beans," 10 July 2018 Photographer: Daniel Acker/Bloomberg An attendee holds a Smith & Wesson Corp. model 460XVR magnum revolver at the company's booth., "Rifles, Pistols and Trump: Inside the NRA Annual Meeting," 6 May 2018 Other drinks followed: A magnum of champagne with sparklers affixed to the neck. Adam Kilgore,, "What happened in Vegas: All night with the Capitals and the Stanley Cup," 8 June 2018 Here, enthusiastic servers sing the natural wine gospel, pouring tastes from a magnum of Bodega Cueva’s Tardana Orange and urging you to poke around the wine cellar. New York Times, "36 Hours in Copenhagen," 26 Apr. 2018 The second youth, believed to be a teenager, pulled a .357 magnum handgun on employees at Valero Gas Station on Sweetwater Road, Sgt. Pauline Repard,, "1 arrested, 1 escapes after Spring Valley gas station holdup," 31 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'magnum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of magnum


1788, in the meaning defined above

History and Etymology for magnum


Latin, neuter of magnus great

Keep scrolling for more

Learn More about magnum

Statistics for magnum

Last Updated

1 Feb 2019

Look-up Popularity

Time Traveler for magnum

The first known use of magnum was in 1788

See more words from the same year

Keep scrolling for more

More Definitions for magnum


Medical Definition of magnum

— see foramen magnum

More from Merriam-Webster on magnum

Rhyming Dictionary: Words that rhyme with magnum

Comments on magnum

What made you want to look up magnum? Please tell us where you read or heard it (including the quote, if possible).


a shady place in a garden or forest

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!