
das Gebrüll
roar
A very loud, deep, and sustained cry, like that of a large animal (e.g., a lion) or of an angry or shouting person.
Man konnte das Gebrüll des Löwen im ganzen Zoo hören.
You could hear the lion's roar throughout the whole zoo.
roar
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roar
A very loud, deep, and sustained cry, like that of a large animal (e.g., a lion) or of an angry or shouting person.
Man konnte das Gebrüll des Löwen im ganzen Zoo hören.
You could hear the lion's roar throughout the whole zoo.
The word is derived from the verb 'brüllen' (to roar/shout). The prefix 'Ge-' forms a noun here that sums up the action or sound of roaring. Such nouns are often neuter (das).
Das laute Brüllen wurde zu einem ununterbrochenen Gebrüll.
The loud roaring turned into an uninterrupted roar.
'Gebrüll' (roar/roaring) is a noun that is almost always used in the singular because it describes a continuous, uncountable noise. You do not say 'zwei Gebrüllen' (two roars).
Das Gebrüll der Fans im Stadion war ohrenbetäubend.
The roar of the fans in the stadium was deafening.
'Gebrüll' (roar/roaring) is often used to describe the loud calls of large animals, such as 'das Gebrüll eines Löwen' (the roar of a lion) or 'eines Bären' (of a bear). But it can also refer to loud, angry, or enthusiastic shouting by people.
Plötzlich hörten wir wütendes Gebrüll aus dem Nebenzimmer.
Suddenly we heard angry roaring from the next room.
screaming / uproar
Geschrei and Gebrüll both refer to loud, unpleasant calling or screaming. Geschrei is the more general term and can also sound shrill or irregular, while Gebrüll is especially loud, deep, and sustained. Use Geschrei for different loud voices and Gebrüll for a booming sound.

Das tiefe Gebrüll des wütenden Mannes war bis zur Straße zu hören.
The angry man's deep roar could be heard all the way to the street.
Das Geschrei der wütenden Fans war im ganzen Stadion zu hören.
The angry fans' screaming could be heard throughout the stadium.