What does Mare Magnum mean in Latin?

Mare Magnum, a proper noun, means “Mediterranean Sea (the sea between Europe and Africa)”.

What is the genitive of Mare Magnum?

The genitive singular is Maris Magnī. Mare Magnum is third declension.

proper nounthird declension

Mare Magnum n sg (genitive Maris Magnī)

Literally, “Great Sea”.

What does Mare Magnum mean in Latin?: Mare Magnum, a proper noun, means “Mediterranean Sea (the sea between Europe and Africa)”.
What is the genitive of Mare Magnum?: The genitive singular is Maris Magnī. Mare Magnum is third declension.