The Collaborative International Dictionary
Two-decker \Two"-deck`er\, n. A vessel of war carrying guns on two decks.
Wiktionary
n. A sail warship, which carried her guns on two fully-armed decks. Usually additional guns were carried on the upper works (forecastle and quarterdeck) but this was not a continuous battery so were not counted. Two-deckers ranged all the way from the small 40-gun fourth-rate up to 80- or even 90-gun ships, with the third-rate or "seventy-four" being the archetype.
Wikipedia
A two-decker is a sail warship which carried her guns on two fully armed decks. Usually additional guns were carried on the upper works ( forecastle and quarterdeck), but this was not a continuous battery, so were not counted.
Two-deckers ranged all the way from the small 40-gun Fifth rate up to 80- or even 90-gun ships, with the third-rate of seventy-four guns, or " seventy-four", being the archetype.
Category:Ship types Category:Age of Sail naval ships
Usage examples of "two-decker".
Landford had ordered Dane to transport Sir Henry to Gibraltar, a duty better suited to the sloop Bluefin or one of the frigates, not a lumbering two-decker.
Kellett shouted, Two of the chebecks are coming for us, sir,” incredulous that such frail-looking craft would dare to challenge a powerful two-decker.
The cable was all but hove short, as were those of the other two-deckers.
The French two-decker was the Mars, you know, fresh off the stocks.
The British had a Neptune in the fight, a three-decked ship with ninety-eight guns, while this Neptune was a two-decker, though Sharpe had the impression she was bigger than the Pucelle.