- the uppermost continuous deck that is capable of being made watertight; freeboard deck.
Origin of upper deck
First recorded in 1585–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for upper deck
When the admiral is on board he occupies the after-cabins on the upper-deck.How Britannia Came to Rule the Waves
We must heave some of our upper-deck guns overboard, Mr Block.Ben Burton
W. H. G. Kingston
Once through the airlock they found themselves on the ship's upper-deck.The Sargasso of Space
The Camperdown has only upper-deck cabins, and I shall have fresh air.Letters from the Cape
Lady Duff Gordon
After the watch was set we laid ourselves down upon the upper-deck with no other covering than the starry heavens.