Discussion
There is little doubt that the Hebrew and Greek words mean “frog". The plague of frogs mentioned in Exodus comes after the plague of polluted water. The frogs seem to have left the water and come into the villages. Since frogs eat flies and thus control fly populations, it seems likely that the death of the frogs was one of the causes of the next two plagues to trouble Egypt, namely gnats and flies.
Description

Special significance or symbolism
Frogs were considered unclean by the Jews and also by the Egyptians and Persians, who associated them with demons.
Translation
Frogs are found all over the world, and there should be no problem in finding a local equivalent.