LATIN DICTIONARYLexicon Latīnum
proper nounvariously declined, fifth declension, first declension

Rēs Pūblica Sinārum

Rēs Pūblica Sinārum f sg (genitive Reī Pūblicae Sinārum)
Classical[ˈreːs ˈpuː.blɪ.ka sɪˈnaː.rũː]Ecclesiastical[ˈrɛs ˈpuː.bli.ka siˈnaː.rum]

Meaning

  1. New LatinRepublic of China

Declension

declension
formsingularplural
nominativeRēs Pūblica Sinārum—
genitiveReī Pūblicae Sinārum—
dativeReī Pūblicae Sinārum—
accusativeRem Pūblicam Sinārum—
ablativeRē Pūblicā Sinārum—
vocativeRēs Pūblica Sinārum—

Origins

Calque of Chinese 中華民國 /中华民国 (Zhōnghuá Mínguó).

Quick answers

What does Rēs Pūblica Sinārum mean in Latin?
Rēs Pūblica Sinārum, a proper noun, means “Republic of China”.
What is the genitive of Rēs Pūblica Sinārum?
The genitive singular is Reī Pūblicae Sinārum. Rēs Pūblica Sinārum is variously declined, fifth declension, first declension.
How do you pronounce Rēs Pūblica Sinārum?
In classical Latin, [ˈreːs ˈpuː.blɪ.ka sɪˈnaː.rũː]; in ecclesiastical (church) Latin, [ˈrɛs ˈpuː.bli.ka siˈnaː.rum].