What does Argentīna mean in Latin?

Argentīna, a proper noun, means “Argentina (a country in South America; official name: Rēspūblica Argentīnae; capital: Bonus Aër)”.

What is the genitive of Argentīna?

The genitive singular is Argentīnae. Argentīna is feminine, first declension.

proper noun · femininefirst declension

Argentīna f sg (genitive Argentīnae)

Ecclesiastical[ar.d͡ʒenˈtiː.na]

New LatinArgentina (a country in South America; official name: Rēspūblica Argentīnae; capital: Bonus Aër)

Borrowed from Spanish Argentina.

What does Argentīna mean in Latin?: Argentīna, a proper noun, means “Argentina (a country in South America; official name: Rēspūblica Argentīnae; capital: Bonus Aër)”.
What is the genitive of Argentīna?: The genitive singular is Argentīnae. Argentīna is feminine, first declension.