das Maschinengewehr
machine gun
A fully automatic firearm designed to fire many rounds in rapid succession.
Im Gefecht kam ein schweres Maschinengewehr zum Einsatz.
A heavy machine gun was used in the battle.

machine gun
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machine gun
A fully automatic firearm designed to fire many rounds in rapid succession.
Im Gefecht kam ein schweres Maschinengewehr zum Einsatz.
A heavy machine gun was used in the battle.

The word consists of 'Maschine' (machine) and 'Gewehr' (rifle/gun). The 'n' is a linking element. So it describes a gun that functions automatically like a machine.
Die Erfindung des Maschinengewehrs hat die Kriegsführung verändert.
The invention of the machine gun changed warfare.
A distinction is often made between a 'leichtes Maschinengewehr' (light machine gun), which can be carried by one person, and a 'schweres Maschinengewehr' (heavy machine gun), which requires a fixed position.
Die Soldaten trugen leichte Maschinengewehre.
The soldiers carried light machine guns.
Especially in historical, military, or journalistic texts, the abbreviation 'MG' is often used.
Der Schütze war für das MG verantwortlich.
The gunner was responsible for the MG.
rifle
'das Gewehr' and 'das Maschinengewehr' sound similar and both refer to firearms. But the difference is important: a 'Gewehr' is generally a long firearm that is fired from the shoulder. A 'Maschinengewehr' is a special, fully automatic firearm that can fire many shots in rapid succession. Learners may confuse the words because 'Maschinengewehr' contains the word 'Gewehr'. Even so, it does not simply mean any rifle, but a specific military weapon.

Im Kriegsfilm war das Maschinengewehr laut zu hören.
In the war film, the machine gun could be heard loudly.
Der Soldat reinigte nach der Übung sein Gewehr.
After the exercise, the soldier cleaned his rifle.