A Sea King can refer to different things depending on the context. Here are some possible meanings:

• In Norse sagas, a Sea King is a title given to a powerful Viking chieftain or pirate.
• In One Piece, Sea Kings are huge, carnivorous monsters that inhabit all of the worlds oceans, and are especially prevalent throughout the Calm Belts surrounding the Grand Line.
• Sea King can also refer to different things in aviation, fiction, and other uses, such as a type of helicopter, a villainous counterpart of DC Comics Aquaman, a Pokémon, or a song by Hawkwind.

Its important to note that Sea Kings in One Piece are not mindless predators, as they have a connection with Poseidon, the Mermaid Princess, and are several times stronger than any ordinary sea monster or creature. Their only weakness is their perception of Seastone.