lower deck

American  

[loh-er] / ˈloʊ ər /

noun

Nautical.

1. the lowermost deck in a hull having two or three decks.

2. the deck next above the lowermost, or orlop, deck in a hull having four or more decks.

---

lower deck British  

noun

1. the deck of a ship situated immediately above the hold

2. informal the petty officers and seamen of a ship collectively

---

Etymology

Origin of lower deck

First recorded in 1700–10

Example Sentences

Illuminated by night, it harbors tea houses on its lower deck and has served as a gathering spot for generations.

From Los Angeles Times • Jun. 22, 2025

Lucianna Galetta was in a cabin towards the back of the lower deck with her partner Christophe Lemmens.

From BBC • Jan. 14, 2025

Fairchild gave the Reds a 3-1 fourth inning lead with a towering, 427-foot shot deep into the lower deck in left field off Syndergaard’s 1-1 slider with Christian Encarnación-Strand on base following a leadoff single.

From Washington Times • Aug. 17, 2023

The vessel was out of fuel and its lower deck was full of water, while the captain had left and there was nobody who could steer the boat, they added.

From Reuters • Apr. 9, 2023

Piper followed her upstairs before the whole lower deck could flood with toilet water.

From "Blood of Olympus" by Rick Riordan