lower deck

[loh-er]

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

noun

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

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

Word History and Origins

Origin of lower deck¹

First recorded in 1700–10