LATIN DICTIONARYLexicon Latīnum
proper nounsecond declension

Imperium Rōmānum

Imperium Rōmānum n sg (genitive Imperiī Rōmānī or Imperī Rōmānī)

Meaning

  1. Roman Empire (an ancient empire based out of the city of Rome, covering vast territories in Europe, Asia and Africa)

Quick answers

What does Imperium Rōmānum mean in Latin?
Imperium Rōmānum, a proper noun, means “Roman Empire (an ancient empire based out of the city of Rome, covering vast territories in Europe, Asia and Africa)”.
What is the genitive of Imperium Rōmānum?
The genitive singular is Imperiī Rōmānī. Imperium Rōmānum is second declension.