Strong’s Greek
G1337 — dithalassos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
διθάλασσος
dithalassos — pronounced dee-thal'-as-sos
from 1364 and 2281; having two seas, i.e. a sound with a double outlet:--where two seas meet. see GREEK for 1364 see GREEK for 2281
1 occurrence in the KJV.
Acts 27:41
And falling into a place where two seas met, they ran the ship aground; and the forepart stuck fast, and remained unmoveable, but the hinder part was broken with the violence of the waves.