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submachine gun

American  
[suhb-muh-sheen guhn] / ˌsʌb məˈʃin ˌgʌn /

noun

  1. a lightweight automatic or semiautomatic gun, fired from the shoulder or hip. SMG


Etymology

Origin of submachine gun

First recorded in 1915–20; sub- + machine gun

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.

Thompson, who takes his stage name from his wartime submachine gun, rose to fame during the bloody conflicts that tore Yugoslavia apart in the 1990s.

From Barron's • Dec. 1, 2025

He fought in three of its five major battles, as well as in many lesser engagements, armed with a Thompson submachine gun.

From New York Times • Jan. 12, 2024

In a recent seminar at Rutgers, he referred to the disease as “MPX,” an alternative he called “absolutely not ideal” after learning that MPX was the name for a type of submachine gun.

From Los Angeles Times • Aug. 26, 2022

The military said the troops confiscated rifles, a submachine gun and other equipment from inside the vehicle.

From Washington Post • Jun. 17, 2022

So was Sigurd Ngozori, the president of the Fidelity & Trust, carrying a heavy briefcase and accompanied by a character with a submachine gun, and Adolf Lautier and Professor Hartzenbosch.

From Four-Day Planet by Piper, H. Beam

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