What is the current largest ship in the world?

Can you enlighten me on the current titleholder for the largest ship in the world? I'm intrigued to know which vessel holds this prestigious distinction at the moment. Is it a massive oil tanker traversing the oceans, or perhaps a colossal cargo ship carrying containers across the seas? Or does the accolade belong to a unique vessel designed for a specific purpose? I'm eager to learn more about the dimensions, capabilities, and the purpose of this monumental ship that towers above all others.