- the lowermost hold space in a hull having 'tween decks or a shelter deck.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for lower hold
A place was broken out in the wake of the main-hatch, and a passage was opened down into the lower-hold, where we met the water.Afloat And Ashore
James Fenimore Cooper