noun.
Among the boats carried by a ship the largest, thus the most capable of boats carried on a ship.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the largest boat carried by a merchant sailing vessel
Word Usage
"In 1904, the mound in southeastern Norway's Vestfold County surrendered one of the country's greatest archaeological treasures, the Oseberg Viking longboat, which is now on display at the Viking Ship Museum in Oslo."