Why is the Caspian Sea a sea and not a lake?

Is the Caspian a sea or a lake? ... The presidents of the five states that share the Caspian's shores - the host along with Russia, Iran, Turkmenistan and Kazakhstan - just could not ... Until now, the Caspian states have been happy to let the status quo prevail, with no final ruling on the lake-sea debate. read more

The Caspian Sea is the largest enclosed inland body of water on Earth by area, variously classed as the world's largest lake or a full-fledged sea. It is an endorheic basin (a basin without outflows) located between Europe and Asia. read more

Lake Tiberias, Lake Kinneret, and the Sea of Galilee are all the same body of water. What we call these things is somewhat arbitrary but the Caspain Sea is both saline and very large. read more

During times of lower water levels, the Black Sea and Mediterranean Sea were not connected and the Black Sea was effectively a lake. The Caspian Sea is a lake that has been a sea in the past. However, it's been a lake for several million years thanks to the joys of plate tectonics. read more