tiber

As proper nouns the difference between tiger and tiber

is that tiger is a town in Georgia while Tiber is the river that flows through Rome in Italy.

As a noun tiger

is Panthera tigris, a large predatory mammal of the cat family, indigenous to Asia.

As a proper noun Tiber

is the river that flows through Rome in Italy.

As an adjective Transtiberine is

located beyond the river Tiber.