double-deck

[duhb-uhl-dek]

adjective

1. Also double-decked having two decks, tiers, or levels.

   a double-deck bunk; a double-deck bus.

verb (used with object)

1. to add a second deck to (a bridge) or a second level to (a road).

Word History and Origins

Origin of double-deck¹

An Americanism dating back to 1865–70