Abarim Publications' online Biblical Greek Dictionary
The noun ποντος (pontos) means sea, particularly the open sea, the "big blue". This word exists also in Latin, as pontus, which is a poetic pleonasm for the more common noun mare. The Greek word ποντος (pontos) does not occur in the Bible. The more common Greek word for sea is θαλασσα (thalassa), which occurs frequently in the New Testament.