- a raised, open area, as a roof, terrace, or ship's deck, that is exposed to the sun.
Origin of sun deck
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- an upper open deck on a passenger ship
- US, Australian and NZ a balcony or deck attached to a house, originally used for sunbathing