This is the 4894th most frequent Portuguese word.
genocídio
Genocídio: The deliberate extermination of a large group of people, especially those of a particular nation, ethnicity, or religion.
Here, 'genocídio' is used in a historical context to refer to a specific tragic event of systematic eradication of a group of people.
O genocídio ocorrido na Segunda Guerra Mundial foi um dos maiores da história.
The genocide during World War II was one of the largest in history.
In this sentence, 'genocídios' refers to potential occurrences of acts of genocide that might happen if preventive measures are not taken.
A ONU trabalha para prevenir futuros genocídios ao redor do mundo.
The UN works to prevent future genocides around the world.
Here, 'genocídio' is used as a general term to refer to an act of genocide and its aftermath.