belowdecks

See also: below decks

English

Etymology

below +‎ decks

Adverb

belowdecks (not comparable)

1. (nautical) Below the main deck of a ship.
   • 2003, Edward T. O'Donnell, Ship Ablaze: The Tragedy of the Steamboat General Slocum, page 54:

     Lastly, Lundberg went belowdecks to inspect the boat's bulkheads and hull—for what, it was not clear, since he had absolutely no knowledge of steamboat design.