double-decker

[ duhb-uhl-dek-er ]

noun

1. something with two decks, tiers, or the like, as two beds one above the other, a ship with two decks above the water line, or a bus with two decks.
2. a food item consisting of two main layers, as a sandwich made with three slices of bread and two layers of filling.

double-decker

noun

1. a bus with two passenger decks
2. informal.
   1. a thing or structure having two decks, layers, etc
   2. ( as modifier )

      a double-decker sandwich

Word History and Origins

Origin of double-decker¹

An Americanism dating back to 1825–35