what is or was the biggest boat in the world?

Noah's Ark. not enough credit goes to his wife Joan (Joan of Ark) for keeping everything running smoothly

the Titanic is or was the biggest boat in the world

The biggest boat in the world, in terms of overall size and length, is the Seawise Giant, an oil tanker that measured 458.45 meters (1,504 feet) long. While it is no longer in operation, it remains the largest ship ever built. Among currently operational ships, the largest is the Icon of the Seas, a cruise ship, which is also exceptionally large at 365 meters (1,197 feet) long

Is it the 'SS Minnow'?