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main deck

American

noun

Nautical.

the uppermost weatherproof deck, running the full length of a ship.

main deck British

noun

the uppermost sheltered deck that runs the entire length of a vessel

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of main deck

First recorded in 1740–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

main deck

Survivors, he said, noted that passengers were on the main deck and possibly below deck when it ran into problems.

From Los Angeles Times ● Jul. 16, 2026

"Today's world needs signs and testimonies that give hope more than words," he said in an impromptu speech in English on the main deck.

From Barron's ● Oct. 18, 2025

With the boat on its side, the group had to crawl along the emergency staircase for two floors, past the restaurant and dining room on the main deck.

From BBC ● Jan. 14, 2025

After breakfast, Javier pulled the kids out onto the main deck for one last photo together.

From Washington Post ● Aug. 11, 2022

Some of them bowed their heads as she climbed the steps to the main deck.

From "The Reader" by Traci Chee

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023